Scores of Russian KGB and Russian military intelligence officials who have defected to the United States over the last fifteen years claim that the Soviet Union hid numerous man-portable, suitcase-sized nuclear weapons in caches across the United States. Both the FBI and CIA have expended vast amounts of money and manpower to locate these caches (which they also believe contain cash, radios, pistols, and other items necessary to support Russian sleeper agents positioned throughout America), but have come up empty. Though the matter has never been resolved, many in the Department of Defense and the intelligence community still believe these weapons caches exist.