and it was extraordinarily dangerous. They did not have the protection of diplomatic cover; if caught, they might face imprisonment or execution. The CIA, they assumed, would claim it knew nothing about them. "It was generally understood, from talking to the other guys," Groat recalls. "Nobody ever said it in so many words." Groat started working at the Shop in 1982 and became the CIA's top burglar and premier lock picker. He planned or participated in 60 missions in Europe, Africa, South America and the Middle East. He received several $5,000 awards for successful entry missions -- a significant sum for someone earning less than $40,000 a year at the time -- as well as an award from the CIA's Clandestine Service and another from the NSA. In several instances, as in the operation in the Middle East capital, he led the entry team. But that operation was Groat's last. The simple fact that a cleaning lady had unexpectedly shown up for work set off a chain of events that pit him against his employer. The operations of the Shop, as described by Groat, other former members of the Shop and other intelligence professionals, illustrate the lengths to which the CIA went to steal other nations' secrets. What happened to Groat illustrates the measures the agency took to protect secrets of its own. Groat would seem an excellent candidate for the job of stealing codes. Six-foot-three, handsome and articulate, he is a former Green Beret trained in scuba diving, underwater