A RARE COOPERATIVE EFFORT

Yousef's arrest came about as a result of unusually smooth coordination among several U.S. and foreign intelligence agencies, says TIME Washington correspondent Douglas Waller. On the U.S. side, the CIA, FBI and even the FAA worked together -- agencies that "don't always get along," Waller notes. But U.S. authorities were also helped by a close relationship they've built up in recent years with Pakistani authorities, Shannon says. "We had many dealings with them during the Afghan war against the Russians," says Shannon.