During Bush's year in charge of the CIA, the U.S. national security apparatus actively supported Operation Condor operations and right-wing military dictatorships in Latin America.[24][25] According to John Dinges, author of The Condor Years (The New Press 2003), documents released in 2015 revealed a CIA report dated April 28, 1978 that showed the agency by then had knowledge that U.S.-backed Chilean dictator Augusto Pinochet ordered the assassination of Orlando Letelier, a leading political opponent living in exile in the United States.[26]