The Unknown Known I know." "The Unknown Known" was screened in the main competition section at the 70th Venice International Film Festival, and premiered at the Telluride Film Festival on August 29, 2013. The documentary has an 84% approval rating on the review aggregator website Rotten Tomatoes, based on 105 reviews with an average rating of 8.2/10. The website's critical consensus reads, "Viewers hoping to see Donald Rumsfeld admit making mistakes in public office may find "The Unknown Known" frustrating – but no less fascinating." On Metacritic, the film has a weighted average score of 69 out of 100, based on 30 critics,
Colin Powell from George Washington University. Powell was a professional soldier for 35 years, during which time he held myriad command and staff positions and rose to the rank of 4-star General. His last assignment, from October 1, 1989 to September 30, 1993, was as the 12th Chairman of the Joint Chiefs of Staff, the highest military position in the Department of Defense. During this time, he oversaw 28 crises, including Operation Desert Storm in the 1991 Persian Gulf War. He also formulated the Powell Doctrine. Following his military retirement, Powell wrote his best-selling autobiography, "My American Journey". In addition, he pursued