Walmart Begins Rollout of RFID and EPC Tags
paroneayea writes "There's a lot about RFID tags in the news today. Wal-Mart is officially beginning to use RFID tags on its merchandise. We've heard about Wal-Mart's plans to introduce RFID tags in the past, but this is the first time that this is actually being put into use. To quote the article: 'Wal-Mart is billing this as a trial, but Simon Langford, Wal-Mart's manager of RFID strategies, told RFID Journal that this is the beginning of the company's planned roll-out of EPC (Electronic Product Code) technology.' Meanwhile, California does something right for a change and introduces a bill that will limit the use of RFID tags in stores and libraries to protect the privacy of customers. IBM, which plans to be a major manufacturer of RFID tags, bashes critics of RFID tags as 'anti-retail.'"
If anyone can give RFID tags ubiquity, it's Wal-Mart. We have them to thank for UPC (for those from the Department of Redundancy Department: UPC codes).
I knew that privacy advocates were fans of Katherine Albrecht's CASPIAN project, but I had no idea that she had the RFID industry this scared.
"Katherine Albrecht has some sort of weird thing in her mind that helicopters might descend and follow you, I mean, how low are these things going to fly?" said Shearer. "I don't understand it basically. She has a particular view, that she's doing God's work and is going to protect us from the globalisation of retailing."
It's been a while since I really scrounged through the CASPIAN sites, but I don't recall reading anything about "helicopters might decend" (and Google seems to agree with me). And a large number of folks in this country think that "doing God's work" is a Good Thing, and would take offense at "God's work" being used as a negative epithet.
They even try to say she's "anti-retail". What the heck does that mean? If anything CASPIAN is pro-retail, trying to preserve the ability of non-registered human beings to buy staple goods at a fair price. What's anti-retail about that?
If the RFID industry thought Albrecht was on the fringe, they'd ignore her. When you see IBM's mouthpiece painting Albrecht as a rabid conspiracy theorist, you realize they know she's not on the fringe anymore. And they're scared.
The open question remains: if the chips are so innocuous, why is the RFID industry so scared of this lady?
Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
Since we cant stop the flood of the damned tags, and they are now on our doorstep, what can we do to at least safely destroy them after we get home.
And no, i dont want to stick my clothes in a microwave oven..
Its invasive and i refuse to walk around notifying my purchasing habits. ( yes, i do pay cash.. )
---- Booth was a patriot ----
"A spokeswoman for Bowen said getting the bill through the Senate--which approved it in a 22-8 vote--was relatively easy because the senators as a group don't have a thorough grasp of the technology. "
I am more concerned with a bunch of aristocrats setting policy without knowledge than what Wal-Mart is doing.
I also fail to see the privacy issue. The tags do not tell the store WHO you are. They can't see you walk out and say, "Joe took a walk-man out of the store" they can only say that one left.
Besides, where was the concern when tags were placed inside of CDs and DVDs? Is this just another "attack Wal-Mart" parade? Wal-Mart is big, but they still are only 8% of the retail market... which makes them anything but a monopoly.
* Winners compare their achievements to their goals, losers compare theirs to that of others.
RFID tags: another reason to hate Wal-Mart.
What, the shitty merchandise, disgusting customers, dirty stores and appalling customer service isn't enough? Any one of those alone would stop me from shopping anywhere.
Seems like California is doing the right thing by limiting their use. It isn't anybody's business to know if I am wearing boxers, tighty whities, nothing at all, even even pink panties under my pants...
Customer walks into wallmart
Automated Computer: Good morning shopper, I see the pack of ultra ribbed, extra small condoms in your pocket is about to expire, and you only have one left - you can find another on aisle 20.
Be sure to check out our special on superlube 4000 while your there
Wife: since when did you use a condom with me?
I said, "Another reason to hate Wal-Mart." I already hate the place.
Keep your eyes to the sky.
I see absolutely no problems here. If you're worried about your privacy, remove/disable the rfid tags onec you've purchased the products. ... oh, wait. The DMCA ... one step closer to 1984 ... well done Bu$h :(
It's not as if there are any laws preventing you from tampering with products that you own
I think michael and the rest of you paranoid bunch need to give up this anti-RFID crusade. If you don't like RFID, don't purchase it. If someone else does, then that's their business, quit your hysterical bitching.
Slashdot Moderation: From positive to terrible in 2 "insightful" posts.
That said, I personally go to Walmart once a year and buy regular commodity crap like toiletries, household supplies, etc. Plus they usually will change my car's oil for $10 less than the other guys. But I go in there knowing I've already checked my soul at the door. RFID is the least of my worries.
As long as they disable the things once they leave the checkout, I have no problems with this really. Now, if they forced them to be embedded into CD backings, major structural features, and/or obscure places, where you couldn't remove them without damaging the product, and left them active, I'd be pissed. Before the product has been purchased, it's their property, and they can do as they see fit, but after I give them my money for it it's mine and no one has the right to know I bought certain products or not if I don't want them to know.
I don't suffer from insanity, I enjoy every minute of it!
Anyone here old enough to remember people freaking out about the UPC sybmol going on everything? This is basically UPC 2.0. It's all about better inventory tracking, and that is the key for retailers like Walmart. Heck, I think I have a Mad magazine from years ago that did a theme spoof on UPCs.
Hecubas
OK, I want a hand-held device, made out of Radio Shack parts, that will burn out RFIDs at close range (say, under 1 foot).
Any EEs out there want to comment on the feasability, complexity, and possible cost of such a device?
(I think a microwave oven works fine, but it's hardly portable...)
Kaa
Kaa's Law: In any sufficiently large group of people most are idiots.
I really don't see any privacy issues with RFID tags put on stuff. The customers are not tagged with it. Hell the only privacy issue I see is using credit card in these places. The good thing I see about RFID is that they could streamline processes which in turn could reduce costs for the company which would be (at least some of it) would be passed on to the customer.
The funny thing is all these people talk about privacy and stuff and I bet they wouldn't even encrypt their email.
I personally don't see the problem with letting them track what I pickup an don't buy, or the path I take in the store.
But what I DO have a problem with is if they connect that information to me personally, wether it be with a shopping ID or whatever. If they start being able to flash personal adds while I'm checking out like: "did you forget your condoms?" because I bought them last time, but didn't this time, I would have a field day in tahiti with my lawyers.
I think it's probable that even without legislation stores will eventually limit themselves, but I say: why let it get to that point? Prevent individual logging now, and limit it to aggregate like TiVo does.
Automated Computer: Good morning shopper, I see the pack of ultra ribbed, extra small condoms in your pocket is still full and you bought them quite some time ago. Not getting any?
See our special on blow up dolls on aisle 21.
that these tags are going on the SHIPPING CONTAINERS! Not actual shelf-product. For example, take a shipment of blank video casettes. They arrive at the store in a box of 12. The box holding the 12 items is what has the RFID, not the tapes themselves. The tapes themselves still use the UPC tags that get scanned by a laser at the cash register.
Result? Wal-Mart gets improvement in their shipping systems, not the Point-of-sale systems. Interestingly, it provides no improvement in loss control, something some wal-marts have serious problem with.
Don't shop at Wal-Mart. I mean, really. For all the bitching here on /. about MS, Wal-Mart is a MUCH bigger, MUCH nastier company. I haven't been in to a Wal-Mart for many years, and I haven't missed it one bit.
When I was lining the inside of my SUV with tin foil, my wife said "isn't the hat enough?"
I knew it was coming to this. Now I'm ready!
Once I leave the store, nobody will ever know what I bought (except Visa, my bank, and their business partners, and Walmart and their business partners, and whoever is behind me at the checkout, and the girl who checks me out, and the kid who bags it, and the old guy who checks my receipt, and the guys operating the 10,000 security cameras at the store).
Well here we have another RFID Tempest-in-a-teapot.
One of the princiapl tenets of capitalism, is that entities that supply better value will succeed, to the expense of entities that do not.
If Wal*Mart has decided that using this technology will allow them to continue to provide the products that people wish to purchase (and based on their position in retail marketers, they must be doing something right) by cutting down on overhead, then so be it.
I have a fundamental failure to understand why this issue (RFID in general, and Wal*Mart's decision to use it in particular) brings out the tin-foil-hat contingent.
I can see some organizations being opposed to it from a self-preservation standpoint. Consider the following hypothetical example:
Because RFID allows inventory to be counted more rapidly, and more accurately, Wal*Mart can eliminate 30% of night-shift merchandise counters - the UCW would oppose the measure.
Counterargument: Because RFID allows inventory to be counted more rapidly, and more accurately, Wal*Mart decides to do shelf-count nightly instead of weekly, this generating a net increase in associate hours.
(The astute reader will note that I am ignoring alleged impropriety in Wal*Mart's relationship with their associates for the simple reason that it is orthogonal to this issue)
How does the Slashdot Effect happen given that no slashdotters ever RTFA?
As a web developer and dilettante programmer, I'm interested in how RFID will extend the reach of our apps beyond the keyboard/mouse and out into the real world (well, several inches out into the real world, anyhow, given the limitations of RFID receivers.)
I've been playing with the RFID kid from Phidgets; it's about 100 bucks to get started with a reader and some chips of your own. Unfortunately for a newbie like me, it's not as easy as working with a barcode reader -- you've got to access the hardware using a VB object, do your own filtering and suppression for multiple reads, etc. If someone has written a package that will abstract this stuff, making the reader act like an easy-cheesy USB keyboard, I'd be glad to know about it.
While we're on the subject, anyone know of any other fun, entry-level RFID hardware, kits, or packages, so we can write our own Evil Supply-Chain-Management All-Seeing-Eye application?
I don't understand this store. They censor CDs that have explicit lyrics without any on-the-package indication. Yet, they sell guns? Seems like two sets of values to me.
I hate Walmart
Keep your eyes to the sky.
So Walmart is using RFID tags to track their merchandice.
Maybe they should use greencards to track their illegally hired under paid immigrant employees.
Umm they aren't even using them on individual products yet, this is just on the pallette of the product in the backroom for inventory purposes. Though i think they plan to use them on individual products in the future.
steal this sig
All techies presumably know about those little security tags that are attached to so many things these days. I'm sure they do a good job preventing theft, else the stores would tell their distributors how worthless they were, and that would be the beginning of the end of them.
Now note that the cashier has to put the tag close to a magnetic plate to disable it so you can leave the store without setting off the alarm system (doesn't always succeed, but does usually).
So imaging a bagfull of stuff you just bought, all decked out with RFID tags. The same alarm-detector at the door that seeks undisabled anti-theft tags can be modified to emit (AFTER passing the anti-theft test) a signal to permanently disable the bag-full of RFID tags. Why not? All the tag-makers have to do is ALLOW them to be disable-able!
First it is the technology to convert your checks into a electronic draft of your checking account, now this.
And the problem with the electronic draft of your checking account is the lack of controls that prevent them from drafting your account AS MANY TIMES AS THEY WANT TO!
Don't think it can happen? Well I got news for you. Not only can that be done, but they can also modify the amounts and draft it again.
It happened to me, which is why I don't shop at Wal-mart any more, or anywhere else that uses said technology. I got lucky, in that my bank ended up covering the difference because the base mistake that caused the merchant in question to modify the draft was the bank's mistake (a supposedly invisible to the users conversion of their checking system).
Beware, Wal-mart doesn't care about the customer and never has.
The only stores Walmart is forcing out of business in my area are Ames and K*Mart, and I don't why I should care about that.
The small downtown stores were killed 15 years ago by the surburban strip malls. Nothing to do with Walmart.
I wish that they'd just do it. Wal-mart's usual method is to put it in a few stores 5-10 in the home state. If it works, spread it out. If it doesn't, see if they could get it to work or look at a different vendor. As Wal-Mart could force most manufacturers to put RFID tags on their products, I'm surprised that they haven't done more testing. They may have. Bar codes save money. RFID Tags could save that much more money than Bar codes. As far as software, all they have to do is modify it to read in the UPC and the RFID tag and it is done. Wal-mart already has very advanced inventory tracking software. Wal-mart's problem is that they need faster/cheaper/easier ways of counting items and verifing the number of item off the truck was the same amount as that put on the truck. The number of products received was the same as the the number of products paid for. The number of items that are on the shelves is what the software says it is. Software isn't magic. It takes stock clerks with barcode wands to do an audit to verify if the store's inventory is "correct." Remember they are trying to reduce shrinkage. Elimating shinkage due to employee theft and employees not following storage procedures would be a good thing. Reducing Shrinkage due to "customers" not paying for "purchased" items would be a good thing as well.
You may be able to say Copyright infrigement does not equal theft. But can you say walking out of Wal-mart with items isn't theft? How could it invade your privacy by them tracking their inventory? Its not your goods unles you purchase them. You can demand that there be no RFID tags on products that you buy. You could go some where else. Here in AR we know that it is possible to compete and stay in business against Wal-mart. I find it hilarious that those in other states are afraid to compete against a little chain store from AR.
My question is, is IBM good or bad today?
More and more it looks like the fog on the divide is lifting. For some of us the Corps have taken our jobs and our dignity, control our government and "our" (Ha!) representatives, and are dictating the necessity of a police state. This is the direction things are going, so what now? I am an Infidel but the idea of Corporation terrorist doesn't seem to sound to bad at the moment. (I'll regret saying that! Now I am surely on THE list.)
A magnetic pulse generator does strange things to RF devices. Anyone know where I can get the plans for one. Perhaps designed to fit within a cane?
Personally, I want my RFID tags.
I want to be able to go up to any item in my house, and say, "What is this?"
I then want to see the specs appear on my computer screen.
I want to be able to go up to any item in my house, and say, "I'm happy to lend this." I'd like my neighbors, if they are looking for a vacuum cleaner, to be able to see that there is a willing lender nearby.
I don't care if my neighbors scan my apartment, and find out that I have underwear, and a toaster, and books.
"Naughty" stuff is not going to leave a store with RFID. If they're willing to ship in a brown paper bag, then they're smart enough to ship with the RFID tag taken off.
I read the article and what I can decern, without having read the bill, is that this oversteps... as our (yes I live in California) communist legislature is wont to do.
I can agree to limits about monitoring outside of the store; that's a clear cut invasion of privacy. However, as far as monitoring what gets picked up off a shelf and returned, etc. That's just silly to try and block. Store personnel could (though not as efficiently) monitor customers behavior visually and get the same knowledge.
It seems to me that the general public, rather than trying to slather on a bunch regulation onto business, has a responsibility to shop in those places that have products, services, and policies that they desire. If you think WalMart is going to somehow compromise your privacy, don't shop there. There are thousands of mom and pop shops that can't afford the technology anyway that sell the same products and are dying for your business. If the extra price is worth the privacy you'll not shop WalMart.
If you consumer/privacy advocates want to engage in a moral approach to this problem: encourage a boycott and encourage people to take a little damn responsibility for goes on in their own lives.
People who are not weary of RFID always point to things such as
Sure that's valid right now, but how about the cost decreasing benefits of NO packaging. Gilette Razor blades for instance, packaged in a big box so they are harder to steal.
They can sell the idea of embedded chips, by saying it decreases packaging costs (which it will). Then, you can't throw it away.
Further, if anyone has noticed, ANY media which can be used as advertising IS used as advertising. From buses, The Internet, to the damn program Guide on your Cable Box, even the products in Movies. How long before RFID is used for that as well, once they have sold the idea of embedded chips.
These devices can NOT be used on doorways for several reasons, not the least of which is the DMCA.
1. These devices are low power low frequency devices which must be VERY close to the antenna since the anteanna is providing the power for the chip. They don't contain batteries.
2. If used on a passageway, think of those with pacemakers passing through this 'exciting' antenna doorway.
3. People with passive entry systems such as those on BMW or Volvo will be disturbed to know Wal-Mart is reading their Key-Fobs (which contain RFID tags) when they pass through the doorways. And note that these RFID tags data is encrypted, so the DMCA can play a role here. That is, the ID is not encrypted, but if they think its one of their tags, and start trying to read the data, they could get into trouble.
Side note. man people predict passive entry will replace key-less entry within 10 years. if this is the case and were all walking around with RFID keys to our cars, privacy concerns could go up quite a bit.
I work in this industry and follow what Wal-Mart is doing very closely. Despite what you might gather from all the posts, Wal-Mart has backed away from primary RFID tags. In english, this means that they are not using RFID tags on the things you purchase. Instead, they are going with secondary and tertiary RFID tagging. In english, they will tag cases of products and pallets of cases. I can't see any privacy concerns in this whatsoever.
It differs from primary RFID in some fundamentally practical ways too. Everyone in the supply chain has a vested interested in making secondary coding work. If (and this is a far from certain "if" at this point) RFID can reliable track a carton out of a manufacturer, into a truck, into a Wal-Mart distribution center, into another truck, and finally into a local Wal-Mart, it will simplify life. (Before anyone jumps on the fact that the RFID tag makes it into the local Wal-Mart - the tag is attached to the corrugated shipping carton which is discarded and recycled when all the product is removed and placed on the shelves).
In contrast, there are a number of people who have a vested interest in not having primary RFID work. Aside from people concerned about privacy, there is an incentive to kill tags if they are used in an automatic checkout system. I foresee jammers, zappers, all kinds of shady, quasi-legal devices.
RFID tags can be read and written to and can have memory capacity from a few K to 8Megs (probably more now). They use the RF energy hitting their antennae to power the device for serial readout. The range can be anwhere from a few feet to 0.5 miles. Alot of trucks and train cars can be scanned up to 0.5 miles as they go by to find out what they are supposed to contain by getting a Bill of Lading list from the memory contained in them. Moreover, the contents could contain the truck and train serial number attached to the contents inside. As for the shopper, if you pay by debit,credit or use the grocery store discount card, they can attach the rfid tags to these numbers. The rfid tags would be a easy way to describe what you bought. The same can be done with the UPC barcode scanners, but they have limited range when stuff is moving through the warehouse. Moreover, the rfid tags can be scanned when going through the detector when leaving the store to set off an alarm or not. Another use of RFID is when you use the toll road and pass through the scanner that detects your id to dock it from your money that you paid the state/gov. This scanner id is associated with your name and license plate so they know who you are. There was talk about a few years back that as you walk around town with your wi-fi or cell phone that they pickup on your id and send you ads about shopping places nearby like food, clothes etc. So yes all these ids in various forms can build a picture about your habits and the things you buy or do. We've had ids for years already, whether it be your drivers license number and the biggest of them all is your social security number!
Their stated goal sometime ago was to expand RFID tags to include 'auto pay', and marketing..
This is where you drive up your baskart to the register, it gets scanned in basket, and you get billed for the cost. Its supposed to be 'convenient'
It also would be able to easily record all the serial numbers of the tags and attach to your buying habits.. with the ability to identify you at a later date purely due to the tags, in order to do 'targeted marketing' as you shop..
Yes this assumes you pay electronically.. but the technology is there for the tracing, and was their stated end goal.. Once costs and user acceptance catch up..
---- Booth was a patriot ----
I contribute monthly to the EFF, and I've spent the past 5 months working with and understanding RFID technology, right down to getting baked by a reader.
There are two types of RFID tags: Active and passive. Active tags have a battery and transmit a signal. They cost a few bucks apiece; they're cheap enough for a lot of good uses, such as locating expensive mobile equipment in hospitals ("Oh, the machine that goes, 'Ping!" is on the third floor women's bathroom!"), but far too expensive to track consumer items -- say, a can of soup. They're also pretty large, since they need an antenna and a battery.
Passive tags are powered by the radio waves themselves. These are the ones that will eventually be cheap enough that they can be put on individual cans of soup, maybe in two to three years.
In order for a passive tag to get enough power to transmit its unique identification number, a few things need to happen. The tag itself -- although it's a very small chip -- needs a rather large antenna to pick up enough energy to get power. The smallest ones I've seen are about 3" long. The RFID reader needs to have a VERY powerful microwave transmitter and antenna. The devices I worked with required me to be at least nine inches away from them most of the time to keep from getting cooked. Even with this powerful reader and large antenna, I've had to hold tags about a foot away from the antenna for a good second or three to see them show up.
Now what are we afraid of regarding RFID? Well, we're afraid that beyond the point of sale, someone will put a reader on us and know all about us or be able to track our movements, because we'll be covered in these RFID tags with unique identifiers.
Now we've seen technology advance, but Physics is Physics. A tag with an antenna no smaller than 3" in size has to be held within a foot of a reader powerful enough to warm your skin for a second to transmint 30-odd bits of data. This is not going to change unless the laws of Physics change first -- there is no technology to change this.
You're going to be able to find RFID tags in your stuff, because the large antenna will give itself away. And you're not going to patiently stand and pose next to a high-powered reader while it tries to sort out all of the tags you're wearing ("Excuse me, can you kneel down so I can get the one on your eyeglasses? Now lift your feet, I can't see your shoes..."), unless you're cold and want to warm up really fast.
What I've laid out here is not common knowledge. That's a big part of the reason I'm writing this now: I know that Slashdot readers are concerned about the issue and are capable of understanding the science behind the issue. Once you understand the issue, you realize that the government isn't going to be using this to track your movements -- from a foot away. People are not going to be able to surreptitiously scan you to learn all about you -- while asking you to stop and pose for the antenna. You're not going to be covered in three-inch-long RFID tag antennas without your knowledge.
I believe that you should be taking neither my word for it nor CASPIAN's. You should do your own research and learn. Don't co-opt someone else's point of view or trust that they've done their due diligence just because you share the same political point of view as he or she does. You may be pro-EFF, just like me -- that doesn't mean you should trust what I've said. You may have beliefs similar to Albrecht's -- but you shouldn't trust that she's done her homework, either!
In practice, you, me, and everyone else does trust the leaders of organizations we agree with to have done their due diligence and to know more than we do about issues. And we do co-opt their points of view. That is why IBM is speaking out: Because it's clear that although Albrecht doesn't understand RFID technology, people are listening to her.
I'm concerned enough about the preservation of civil liberties to donate regularly to the EFF. After working with RFID technology for the past several months and seeing its inherent limitations, I feel that we have little, if anything, to fear from this technology. But don't take my word for it because I claim this is true; do your own research.
(Sorry, hit the wrong key on previous reply)
You've made some of the most thoughtful replies on the topic, so I'll answer this one:
What other things comprise a corporation? Do you know of a corporation that has turned over decision making responsibility to a non-human?
Here's one big difference: a person can be punished in a number of ways, when he or she commits a crime. These range from financial penalties, to loss of freedom for a varying length of time, to the ultimate penalty of death. For individuals whose motivation is less than altruistic, these punishments provide a needed deterrent to behavior that hurts the rest of society.
A corporation, on the other hand, can *only* be punished in one way: financially. You can put corporate officers in jail, but the corporation itself will continue to exist with the same rights and freedoms that it enjoyed before. There is no "6 to 10 years in prison" for a corporation. Even the ultimate penalty, bankruptcy, isn't a death sentence for a corporation. It's just another financial penalty -- witness Enron and MCI.
Even the notion of ethics influencing behavior breaks down at the corporate level. A person may naturally be a saint, or he may be a sinner kept in line only by the threat of punishment in the next life. A publicly held company, on the other hand, is the ultimate atheist: its god holds its stock, and will mete out punishment in this life. There is no concept of ethics, other than artifical constructs that outside entities (ie, governments) have built to constrain the company.
In short, humans can be punished according to their crime, corporations can not. Humans have a soul, corporations do not. It is therefore a fallacy to give an artificial construct like a corporation equal rights with a human being -- not because of what it does right, but because of what you can't do when it does wrong.
Stressed? Me? Of course not. Stress is what a rubber band feels before it breaks, silly.
This is not to discount the privacy issue - but
May I propose a bright Side?
We GIVE thousands of bottles of medicine to hospitals in Iraq. The day they arrive they are taken out the back door and distributed by a mafia blacl market.
That and not a fanatical religion is what is standing in the way of progress.
Progress in developing countries can be measured as the time it takes for people to assume that dishonest acts will be punshished.
Transparency.org tracks public perception regarding corruption for various countries.
The point is the ITEM LEVEL IDENTIFICATION is a disruptive technology for reducing the ability of corrupt economies to operate anonymously.
If we could RFID every item of material support we send to IRAQ we could satisfy the essential needs of the masses without enriching a few warlords - which means our boys could be home for Christmas.
I'm not sure we need this here - but let's look at some world class problems which could be solved.
AIK
To be honest, the RFID tag issue seems relatively minor compared to the privacy issues we're already forced to endure when shopping at some of the larger retailers.
I was just watching a news piece on last night's local TV broadcast about how sophisticated the cameras have become at Home Depot stores. Apparently, their entire store is covered by cameras on the ceiling, and photos are taken and digitally stored of each person as they make purchases at the checkout counter.
They were bragging about how a murder case was solved in this manner, because a label and UPC code were found on the handle of a rake used in the crime. This traced it back to Home Depot, where they were able to input the UPC code and retreive perfectly clear photos of the person buying the rake. Home Depot claims they store all of this information for at least 1 year.
Perhaps just as interesting was that despite Home Depot's assertion that "This information is only used internally, and not provided to govt. agencies or any private outside individuals." - the police were able to get those photos of the guy buying the rake just by walking in a store and asking for them.
Target stores are also known for using sophisticated surveillance systems (and similar to Home Depot's setup, they're obviously able to retreive photos of who bought what in the past - as witnessed by the recent case where the college student faked being kidnapped, and was caught when they showed camera footage of her purchasing duct tape and rope, etc. at the local Target store just before it happened).
A private investigator interviewed on the news was quoted as having obtained this type of evidence from a retail store in New York, after he was hired to try to spy on a suspected cheating husband. (He purchased lingerie on his credit card, and then tried to claim his card was stolen - so the P.I. obtained photographic evidence that it was indeed him buying the items.) They asked the P.I. if he had permission to obtain this information from the retail store. He said no, but he had "confidential sources" that got it for him anyway.
That's the problem with all of this stuff. Once this type of data is indexed and stored somewhere, it has the potential to fall into the wrong hands - and eventually *will* do so. It's only a matter of time.
As if there weren't enough reasons to NOT shop at Walmart, here is another one.
From driving down wages and destroying small businesses to employing illegal aliens to driving near-slave labor in other countries, Walmart is just a HUGE can of worms. Just another notch in the belt IMO.
And those are just the political reasons. Dirty stores. Merchandise and boxes all over the isles.
Make it known that you don't want to shop there, for RFID and the other noted reasons. I'm sure walmart will say it will immensly cut down on theft, but honestly, with the amount of businessnes they do, they probably don't notice it anyway. They will say that this will drive down prices for the consumer, but the consumer hardly benefits from this at all. Walmart will benefit by improved inventory control/tracking/ potentially seeing customer buying habits.
-- Having a Creationist Museum is like having an Atheist place of worship
"Now, how could such limited devices be of any use in retail?"
The main benefit of the RFID tag over the UPC label is that you don't have to have the tag aligned a certain way and visible to activate it.
In the supply chain leading to the store, lots of products are buried in a pallet, and organizations need to know what's in there (and how many) to track their shipments efficiently. With RFID tags, the pallet need not be opened to know exactly what's in it. In the warehouse, workers can remain a safe distance away from readers on conveyers, forklifts and the like.
Wal-Mart and the US military have immense supply-chain networks. If they save a fraction of a penny per item in their supply chains through better tracking, they can save hundreds of millions of dollars per year. That's why Wal-Mart and the US military are the first two organizations to sponsor supply-chain RFID pilots.
The other uses you mention are still possible, but require some good engineering work. For example, at the checkout counter, much lower-powered readers can be used, because the checker can put the tag on the reader's antenna at point-blank range, and it's not a problem to wait a second for the tag to slowly charge up and send its data.
Theft prevention would require the cooperation of security cameras. The idea is that store shelves would have readers and antennas, so that when someone would remove an item, there's a record of it leaving a shelf. Then, you would be able to go to the videotape and view the thief taking the item as it happens. So you don't see the item leave the store, but you can see it leave the shelf. Shelf-mounted readers can also help floor managers know when certain items are low on stock, and that sort of thing. Again, since the items sit on the shelf for long periods of time, and since we're talking about a short distance, this sort of thing can happen -- but it's going to take some good engineering work to get solid coverage of large shelves without nuking customers.
I believe the benefits of RFID inside the store have been oversold. I think that's the main reason why people are worried about their privacy now; RFID sounds a lot more powerful than it really is. The real applications will be in warehouses; Wal-Mart isn't going to get a lot of benefit from RFID in their stores, but they're going to save billions in the long run by making their supply chain to the stores more efficient.