Are you a mom?
If so, you can ask real moms your parenting questions and get answers in minutes!
The wallet-sized U.S. passport card, first introduced in 2008, contains what is known a vicinity, or vicinity-read, radio frequency identification (RFID) chip. The purpose of the RFID chip is to increase speed, efficiency and security at U.S. land and sea border crossings, particularly for frequent travelers.
RFID belongs to a family of technologies known as automatic identification and data capture (AIDC) technologies that allow objects, animals and people to be identified, located and tracked using radio waves. RFID relies on a small radio device, known as a transponder or tag, that consists of a tiny silicon microchip and a small, flat aerial. The transponder broadcasts radio frequency messages that can be read by an RFID reader in the vicinity and transmitted to a host computer.
RFID technology has been commercially available since the 1970s and is used in a variety of applications, including car key tags, highway toll tags and security access cards. In fact, the Department of Homeland Security has used RFID technology as part of its trusted traveler programs on the U.S. borders with Canada and Mexico since 1995.
Answer by SWasson at 5:08 PM on Jul. 11, 2012
Answer by mrsmom110 at 5:11 PM on Jul. 11, 2012
Answer by Dardenella at 5:24 PM on Jul. 11, 2012
Answer by Ludvik_Smith at 6:37 PM on Jul. 11, 2012
Answer by Farmlady09 at 5:40 PM on Jul. 12, 2012
Next question overall
At least we know that religion is harmless. . . (it's what people choose to...