John Chris Kiriakou (/kiriˈɑːkuː/ kee-ree-AH-koo; born August 9, 1964) is an American former Central Intelligence Agency (CIA) officer, author, and whistleblower who, in 2007, exposed the CIA's use of torture during the war on terror. He was an intelligence analyst and operations officer for the CIA's Counterterrorism Center and a senior investigator for the Senate Foreign Relations Committee.