Klaus Barbie, the notorious Nazi war criminal known as the Butcher of Lyon," managed to escape justice for decades, living under a false identity in Bolivia until his arrest in 1983. Barbie worked for Western intelligence services and adopted the alias Klaus Altmann in South America. In Bolivia, he became the chief security adviser to Roberto Suárez, one of the world's most powerful drug traffickers. Barbie's success with Suárez brought him new clients, including dictator Luis García Meza, who seized power in 1980 with the backing of cocaine barons. Barbie, hailed as the ideological architect of Bolivia's "Cocaine Coup," was awarded the rank of lieutenant colonel in the Bolivian army and granted immunity for his actions. He helped Meza set up death squads and served as Bolivia's de facto intelligence chief. New revelations stem from recently declassified CIA cables from 1974, which show that agency operatives suspected Barbie of involvement in the drug trade " including possible links to Colombian drug lord Pablo Escobar. Barbie was reportedly recruited by the CIA. His role in aiding drug cartels was allegedly part of a broader U.S. effort to prevent leftist regimes from taking power in Bolivia " as had happened in Cuba " by bolstering military dictatorships. This cooperation is believed to have allowed Barbie to evade extradition to France for years. When he was finally captured, the U.S. formally apologized to France for helping him flee.