In Britain, Libyan hit squads murder Colonel Gaddafi's exiled opponents. All over the world the Libyans back terrorist groups - including the IRA. Now Panorama reveals the key men behind Libya's world-wide terror campaigns - ex-CIA officers who trade expertise for cash. Former CIA man Kevin Mulcahy , once part of the scheme, admits that American mercenaries are training terrorists in secret desert camps, while American businessmen sell the Libyans everything from plastic explosives to poison. In this special edition of Panorama, Jeremy Paxman reports on the lucrative trade in terror that Western governments are seemingly powerless to stop.