"In 1951, Jones became a member of the Communist Party USA, and began attending meetings and rallies in Indianapolis. He became flustered with harassment he received during the McCarthy Hearings, particularly regarding an event he attended with his mother focusing on Paul Robeson, after which she was harassed by the FBI in front of her co-workers for attending. He also became frustrated with ostracism of open communists in the United States, especially during the trial of Julius and Ethel Rosenberg. This frustration, among other things, provoked a seminal moment for Jones in which he asked himself "how can I demonstrate my Marxism? The thought was, infiltrate the church."