Russia dusts off their trenchcoats.

Russia runs more than 100 known spies under official cover in the U.S., senior U.S. intelligence and law-enforcement officials say. And those are just the more easily spotted spies working under the classic guise of diplomat. An unknown number of so-called nocs who work under nonofficial cover as businessmen and -women, journalists or academics undoubtedly expand the Russian spy force. "They're baaaaack," says a former senior U.S. intelligence official who worked against Moscow during the cold war. "They're busy as hell, but I don't think we've really got what it is that they're doing."