At the Coachella music festival in California earlier this year, more than 30,000 young people placed RFID tracking and identification chips on their right wrists. The wristband was required for entrance, and had to be worn for the entire concert.
Police set up checkpoints in a one-mile perimeter around the concert grounds. All cars were stopped, and passengers were required to show their tagged right hands to authorities in order to proceed.
The picture above is of police checking to make sure everyone's wrist is tagged with RFID. The image comes directly from the Coachella website.
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