This report by the Constitution Project's blue ribbon Task Force on Detainee Treatment is the most comprehensive, bipartisan investigation into the detention and treatment of suspected terrorists yet published. The product of more than two years of research, analysis and deliberation by the Task Force members and staff, it provides the American people with a broad understanding of what is known, and what may still be unknown, about the past and current treatment of suspected terrorists detained by the U.S. government during the Clinton, Bush and Obama administrations, and across multiple geographic theatres, including Iraq, Afghanistan, Guantánamo and the so-called "black sites." Its conclusion: "It is indisputable that the United States engaged in the practice of torture" after September 11, 2001 "and that the nation's highest officials bore ultimate responsibility for it."