Think "Speed pass", only embedded in your arm

A Cincinnati video surveillance company CityWatcher.com now requires employees to use Verichip human implantable microchips to enter a secure data centre. Until now, the employees entered the data centre with a VeriChip housed in a heart-shaped plastic casing that hangs from their keychain.

The VeriChip is a glass encapsulated RFID tag that is injected into the triceps area of the arm to uniquely identify individuals. The tag can be read by radio waves from a few inches away.

Although CityWatcher does not require its employees to take an implant to keep their jobs, they won't get in the data centre without it.

-The Register