 In a 2007 interview with Caracol TV, Klein claimed that he was sent to Colombia by request of the National Police in order to train its members, and stated that he was willing to go back and help destroy the FARC guerrillas.He also criticized the demobilization of the paramilitaries, saying it was "stupid" to do so while the guerrillas remained a threat.Klein, with the help of Bruce Rappaport, was heavily involved in the Guns for Antigua scandal of 1989, helping Maurice Sarfati launder guns from Israel through Antigua to Colombia, intending to supply Israeli-made weapons to the Medellin Cartel.