Adolf Hitler, fuhrer of Germany, is seen in this Aug. 5,1941 photo. On Friday, April 27, 2001, 10,000 pages of CIA files were declassified in an effort to shed more light on Nazi war criminals and how Western governments later used them as intelligence sources. Files on Hitler were released with those of 19 other Nazi-era figures including Gestapo chief Heinrich Mueller and Dr. Josef Mengele. (AP Photo)