Foster was indicted under the [[Smith Act]] in 1948 for [[subversion]], but did not go on trial because of his poor health. He later lost his post in the Communist Party for refusing to condemn the Soviet suppression of the [[Hungarian Revolution]]. He died in 1961. | Foster was indicted under the [[Smith Act]] in 1948 for [[subversion]], but did not go on trial because of his poor health. He later lost his post in the Communist Party for refusing to condemn the Soviet suppression of the [[Hungarian Revolution]]. He died in 1961. |