In this philosophical memoir, Whittaker Chambers recounts the famous Alger Hiss spy trial as well as his own experiences as a Communist agent in the United States and his later renunciation of communism. Published in 1952, Witness came on the heals of America's trial of the century, in which Whittaker Chambers accused Alger Hiss, a full-standing member of the political establishment, of spying for the Soviet Union.