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Replacing Metal Detectors With Brain Scans

Zordak writes "CNN has up a story about several Israeli firms that want to replace metal detectors at airports with biometric readings. For example, with funding from TSA and DHS, 'WeCU ([creepily] pronounced "We See You") Technologies, employs a combination of infra-red technology, remote sensors and imagers, and flashing of subliminal images, such as a photo of Osama bin Laden. Developers say the combination of these technologies can detect a person's reaction to certain stimuli by reading body temperature, heart rate and respiration — signals a terrorist unwittingly emits before he plans to commit an attack.' Sensors may be embedded in the carpet, seats, and check-in screens. The stated goal is to read a passenger's 'intention' in a manner that is 'more fair, more effective and less expensive' than traditional profiling. But not to worry! WeCU's CEO says, 'We don't want you to feel that you are being interrogated.' And you may get through security in 20 to 30 seconds."

23 of 327 comments (clear)

  1. cuz nobody has EVER been able to fool that by Shakrai · · Score: 4, Insightful

    wonderful piece of technology known as the polygraph before..... don't polygraphs also rely (in part) on body temperature, heart rate and respiration?

    --
    I want peace on earth and goodwill toward man.
    We are the United States Government! We don't do that sort of thing.
    1. Re:cuz nobody has EVER been able to fool that by snspdaarf · · Score: 5, Insightful

      Yep. Also, depth of respiration, skin resistance, and blood pressure.

      A good operator can usually tell if someone is deliberately trying to prevent them from establishing a baseline, but people with something to hide used to carry a thumbtack to poke their fingers with during questioning. It was supposed to allow them to concentrate on the pain instead of the questions, and prevent, or mask, the emotional/physical response that the machine could pick up. Then someone got caught and the operators would check for poke marks in the skin.

      I guess one could concentrate on a mental image of Sarah Palin in a nipple bra to counter the Bin Laden image. Or, Dick Cheney as a Chippendale dancer.

      Must...poke...out...mind's...eye....

      --
      Why, without your clothes, you're naked, Miss Dudley!
    2. Re:cuz nobody has EVER been able to fool that by JustinOpinion · · Score: 5, Insightful

      don't polygraphs also rely (in part) on body temperature, heart rate and respiration?

      Polygraphs measure those things, but don't do much with the data. The main purpose of a polygraph is not to detect lies, but to intimidate the person being questioned. The idea is to trick the person into thinking that the polygraph is infallible and can determine when they are lying. This gives the interrogator another way to pressure the person into talking. (The person may incorrectly believe that the interrogator "already knows" or may reveal secrets because they feel that they no longer have any control--they don't feel culpable since they can't hide secrets from the machine.) Of course admitting that this is the purpose of a polygraph would undermine the tactic.

      I'm guessing this new technology will be much the same: it won't actually work by measuring anything useful; but it may have a psychological effect that makes people easier to interrogate. This might be (marginally) useful for uncovering the occasional teenager smuggling pot, but I doubt it will do anything useful when it comes to terrorism. This quote is hilarious:

      Developers say the combination of these technologies can detect a person's reaction to certain stimuli by reading body temperature, heart rate and respiration -- signals a terrorist unwittingly emits before he plans to commit an attack

      For this to be true--for them to actually have calibrated their machine in a rigorous way, so that it can detect "terrorist intentions" with any kind of certainty--they would need to have tested it with a statistically-significant number of terrorists. Somehow I doubt their R&D facility has a few hundred terrorists in lockup (willing to lie and not lie on demand). I'm guessing their actual sample size was closer to zero. In other words they are just guessing that someone with "terrorist intentions" will exhibit similar physiological responses to someone who is nervous for other reasons.

      Yet another worthless security measure being sold to worthless security organizations.

    3. Re:cuz nobody has EVER been able to fool that by Manfre · · Score: 5, Funny

      It's an israeli company. They'll probably just calibrate it with everyone who passes through their borders. Everyone would get grouped in to two categories. Israeli or Terrorist.

    4. Re:cuz nobody has EVER been able to fool that by philspear · · Score: 4, Funny

      Yet another worthless security measure being sold to worthless security organizations.

      Let's capitalize on that. We could go into the buisness of selling "anti-terrorism rocks" to the government and airports. I'll get the rocks, you sell it to the security orgs.

    5. Re:cuz nobody has EVER been able to fool that by CrankyFool · · Score: 4, Insightful

      There's a much bigger problem with bombs: They don't require informed consent.

      See the case of Nizar Hindawi, who attempted to sneak a bomb on an El Al flight by tricking his pregnant girlfriend into taking it with her -- having her go through any intention scanner would show her to be completely trustworthy and innocent -- because she was. That's a problem that is exists for bombs, but not (easily) for guns. After all, it's not like you'd look in your carryon half-way through the flight, find a gun you didn't expect there, and go "OMG! Got to hijack the plane!"

    6. Re:cuz nobody has EVER been able to fool that by VShael · · Score: 4, Funny

      Everyone would get grouped in to two categories. Israeli or Terrorist.

      Right. Like when you go through Israeli passport control, and they ask
      "Why are you here, business or pleasure?"

      "Business"

      "Occupation?"

      "No, just a two day meeting."

  2. Somethings wrong... by tburke261 · · Score: 5, Insightful

    What about someone who is carrying a weapon without their knowledge? That won't show up on the scans. I could see the supplement current screening technologies if it ever is deployed, but not replace them.

    Let's not even start about false positives....

    1. Re:Somethings wrong... by Mysticalfruit · · Score: 5, Insightful

      I was wondering the same thing...

      Step A. Someone purposely handles explosives or better saturates their shins/shoes with a chemical that would set off the bomb detector.
      Step B. Go to an airport and purposely brush by/touch people luggage.
      Step C. Watch as airport grinds to a halt with massive numbers of false positives.

      Even better spill some of this chemical in a doorway carpet so that lots of people would walk in every direction with it on their shoes.

      How would an airport rationally handle something like this?

      1. They could simply close the airport and wash every surface (I guess this would considered an physical DDOS)
      2. Turn off the devices and go back to manually searching every article. (Slow but people would still get through)
      3. Leave the devices on and just process all the people who come up positive. (Slow but people would still get through)

      I'm not sure that an airport would have a really good way to combat this. I guess one way would be to put sniffer type devices discretely through the airport that you could use to map out the location of certain chemicals. Then set up the airport with doors that could be closed remotely so that when something like C4 is detected in some area you could seal the area, etc.

      --
      Yes Francis, the world has gone crazy.
  3. Brain scans? by jcr · · Score: 5, Informative

    TFA doesn't say anything about brain scans What's up with that headline?

    -jcr

    --
    The only title of honor that a tyrant can grant is "Enemy of the State."
  4. I'm sure you don't.. by daveatneowindotnet · · Score: 4, Insightful

    'We don't want you to feel that you are being interrogated.' Yeah that might interfere with your interrogation.

  5. Heh by It+doesn't+come+easy · · Score: 4, Funny

    I can see it now...someone hacks the system and substitutes subliminal porn images for the bin Laden pictures. Talk about provoking a physiological reaction...

    --
    The NSA: The only part of the US government that actually listens.
  6. Wow, that's creepy by nobodylocalhost · · Score: 5, Interesting

    Right now it is used to find terrorists, but this technology can be used in reverse. Flashing images of the president and the national flag, anyone don't respond positively get singled out... Such uses are very disturbing.

    --
    Where is the "Ignorant" mod tag?
  7. The article states: by Hahnsoo · · Score: 5, Funny

    "It is possible today to hijack an aircraft using only five or six able-bodied passengers who are well-trained in Kung Fu fighting," he says. "There is no technology in place in airports to detect a threat like that."
    Well, no. Not unless you start putting Ninjas on every plane. Everyone knows that Ninjas > Kung Fu fighting.

    Apparently, Everybody was Kung Fu Fighting...

    tl;dr WTF?

  8. Control by ShakaUVM · · Score: 5, Insightful

    And how did they devise a control for this?

    AFAIK, there's no biometric scans of the 9/11 terrorists, so it's just like the company is guessing anyway. For all we know, terrorists could be the only completely calm people going through security, as they're the only ones not worried about arriving at their destination late.

    1. Re:Control by Shakrai · · Score: 5, Funny

      as they're the only ones not worried about arriving at their destination late

      But what if they are late arriving in paradise and someone else gets the virgins?

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    2. Re:Control by Chris+Burke · · Score: 4, Funny

      But what if they are late arriving in paradise and someone else gets the virgins?

      I'm sure they've got that covered as part of the normal course of things. After all, the afterlife is the one place where everyone arrives late.

      *ba-dum pssssh*

      --

      The enemies of Democracy are
  9. Everyone would fail. by tjstork · · Score: 5, Funny

    At some point, people will get so pissed off at getting poked, prodded, searched, scanned, monitored and tracked to see if they are terrorists, that they will wind up deciding that it is actually easier to become terrorists themselves.

    --
    This is my sig.
  10. This might not actually be so bad if it worked. by JesseL · · Score: 4, Insightful

    I have no ill intentions, but I hate going anywhere unarmed. Maybe I could finally fly without having to give up my knife and sidearm.

    --
    "Prefiero morir de pie que vivir siempre arrodillado!"
  11. Somebody introduce these guys to Bayes Theorem by yali · · Score: 5, Interesting

    Let's not even start about false positives....

    Actually, let's do...

    What many people don't realize is that detection procedures with very impressive-sounding statistical properties generally do horribly at catching rare events.

    Imagine some very impressive numbers. Suppose that this procedure has 99.999% sensitivity -- it catches nearly every wannabe terrorist who tries to board a plane intending to do harm. And suppose it also has 99.999% specificity -- out of 100,000 innocent passengers, 99,999 will be correctly identified as innocent, and only 1 will be a false alarm. Sounds good, right?

    Not really. In a given year, only a very small number of passengers are wannabe terrorists -- say, 10 per year. (That's probably high.) On the other hand, there are 1.6 billion air passengers per year (that may be a low estimate, since it's a 2000 number). So if this were implemented worldwide, then in a given year, we can assume that this profiling procedure will flag 160,010 people as terrorists. Only 6 x 10^-5 of those will be actual terrorists.

    Of course, those hypothetical sensitivity and specificity numbers are unrealistically, ridiculously good. With more realistic numbers, the problem gets much worse. Even if the detection procedure is very sensitive and very specific -- and I doubt that it is -- the low base-rate of terrorism means that an enormous number of people will be falsely accused of being terrorists.

  12. Re:Recruiting Ninjas is starting a never ending cy by camperdave · · Score: 4, Funny

    You counter with Ninjas, then they counter with Pirates. You think the Ninja's will stand a chance against Kung-Fu Pirates? I shudder at the thought of what they will be stopped with.

    Snakes?

    --
    When our name is on the back of your car, we're behind you all the way!
  13. OMFG by erroneus · · Score: 4, Insightful

    That's it... if there was any question about where that "too far" mark may be, we can be sure they have gone well beyond that point.

    Now they can screen for all sorts of things... "gay"? "pedophile"? Who else can we decide to hate and persecute?

    If all this stuff could potentially save my son's life, I still say NO!!

    Pause for a moment to let the gravity of that sink in. Now go back and realize that there is more chance of a drunk driver killing him than a "terrorist." Regardless of which may happen, it will always feel tragic and there is no way to effectively protect ourselves from everything. This crap has got to stop.

  14. Re:Testing by z0idberg · · Score: 4, Funny

    Well thats one virgin, 79 to go.

    Any more volunteers?