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High-Tech Gadgets Can Pose Problems At Mexican Border
TechnologyResource writes "Going across the border will be a more 'interesting' experience since Customs and Border Protection will now be checking laptops, digital cameras, cell phones and any other electronics on your person or in your vehicle. It's not a new authority, according to Angelica De Cima, Office of Public Affairs Liaison 'They've always had the right to inspect your person, vehicle, baggage, anything on you. Nothing has changed from before,' De Cima said."
.You needn't worry about your GPS unit, ever since the Firestone tire debacle. The resulting law said that every tire needed to be able to be identified as being from Lot #X without being dismounted (prior to that lot numbers were printed on the inside of the tire). The manufacturers' solution was RFID chips with unique serial numbers embedded in every tire.
Uh, no. I work in the tire manufacture business. The lot ID has always been - and still is - available for inspection on the outside of the tire. We call this the "serial plate", it's mounted to the mold. Look for a series of letters / numbers bracketed by impressions of what looks like screw heads: that's the serial plate. It's near the bead area. Granted, it may be on the inboard side and may require you to crawl about with an inspection mirror (or put the vehicle up on a rack), but no need to dismount the tire. Tire lot ID's were never on the inside of a tire. What people see there are impressions of the cure press' bladder lot ID, a different thing entirely.
What the law requires is for vehicle manufacturers to provide a way of reading tire pressures automatically and notifiying the vehicle operator of low and/or imbalanced tire pressures. The pressure transponder (an RFID-like device) is part of the valve assembly, not the tire.
Various tire makers have experimented with placing RFID tags into tires but with little success. It's a very hostile environment (high temperatures and pressures) inside the material while the tire is being cured, tags don't survive it very well.