The Spy Who Was Left Out in the Cold by Tim Tate
[PDF file]: […] disappointed. Up to the mid-1950s the US intelligence services had gathered very little reliable information on the activities of their Soviet bloc intelligence opponents. Then an anti- communist intelligence officer, Michal Goleniewski, working with Polish intelligence, began leaking them information. Code-named ‘Sniper’ by the CIA, he was by far the most important source the […]