John O. Brennan

John O. Brennan is an American intelligence officer and former government official known for his role as the Director of the Central Intelligence Agency (CIA) from 2013 to 2017, under President Barack Obama. He played a key role in U.S. counterterrorism efforts and was involved in significant policy decisions, including those related to drone strikes. Brennan has a background in national security and intelligence, having previously worked in various roles within the CIA and the White House. He is recognized for his insights on intelligence operations and national security issues in public discussions and writings.