P. O. Box 1142
P.O. Box 1142 was a secret American military intelligence facility that operated during World War II. The American Military Intelligence Service had two special wings, known as MIS-X and MIS-Y. The MIS-X program focused upon assisting the escape and evasion activities of American Prisoners of War (POWs) held by the Germans in Europe. MIS-Y's core duty was to interview German POWs.