Tyler Drumheller

Tyler Scott Drumheller (April 12, 1952 – August 2, 2015) was an American Central Intelligence Agency (CIA) officer who served during the Cold War and early War on Terror, advancing to chief of the European division for clandestine operations in the Directorate of Operations from 2001 until his retirement in 2005. He later became known for exposing the Bush White House's use of intelligence from Curveball, an unreliable Iraqi intelligence source managed by the German BND, to mislead policymakers and the public in the lead up to the 2003 invasion of Iraq. Provided by Wikipedia