For almost a decade, the tyrannical Ngo Dinh Diem governed South Vietnam as a one-party police state while the U.S. financed his tyranny. In this new book, Seth Jacobs traces the tragic history of the so-called "Diem experiment" from his first appearance in Washington as a penniless expatriate in 1950 to his murder by South Vietnamese soldiers on the outskirts of Saigon in 1963.