Józef Światło was born in Poland in 1915. He joined the Communist movement in 1933, and became a Polish Security Service officer in 1945. He rose to the rank of Deputy Chief of Department X, which was responsible for protecting the Communist Party from non-Party subversive forces and for protecting "the purity of the Party from within the Party". After his escape into the United States, Jozef Swiatlo made his first public statements in Milwaukee, in carefully controlled testimony given before a Congressional Committee on 21 and 22 October 1954, and again a few weeks later in Washington. His testimony was recorded and broadcast over RFE on 28 September. Until 31 December he was a constant figure on RFE's Polish Service broadcasts: one hundred taped programs and almost 150 news items. These programs were called, "a brilliant tactical decision that brought unforseeable strategic gains," and "one of the most successful pieces of radio propaganda ever’. The series includes original texts, background reports, Information Items and press clippings on the Światło case.

Arranged by types and thereunder chronologically