If you thought the gold in Fort Knox was well guarded, this might change your mind. slashdot.org has posted an article on security measures adopted by certain businesses for their data centers. Far beyond the lock and key method, these facilities are out in the middle of nowhere: underground. "The 65,000-square-foot, five-story site is dug deep into the ground. No one gets in without passing though the 4.5-ton steel door and then a three-step process. A scanner uses radio frequency to read the would-be entrant's skin as a biometric identifier. He then needs to use a keycard and enter a code on the keypad." Fascinating stuff. Get it all here.