Joseph Kozelka reached the K&G Building, a modern highrise that towered above downtown Denver. The ground-floor lobby was buzzing with men and women in business suits, the clicking of their heels echoing off the polished granite floors. Four banks of elevators stretched from one end of the spacious atrium-style lobby to the other. The first three were for tenants who leased the lower thirty floors from K&G. The last was for K&G visitors and employees only, floors thirty-one through fifty. Kozelka stopped at the security checkpoint before the special employee elevators. The guard smiled politely, almost embarrassed by the routine. “Good morning, sir. Step up to the scanner, please.” Kozelka stepped forward and looked into the retinal scanner. The device was part of K&G’s high-tech corporate security. It could confirm an employee’s identity based on the unique pattern of blood vessels behind the retina, like a fingerprint. A green light flashed, signaling approval.
