The JIOA had one representative of each member agency of the Joint Intelligence Committee: the army's director of intelligence, the chief of naval intelligence, the assistant chief of Air Staff-2 (air force intelligence), and a representative from the State Department.[6] In November 1945, Operation Overcast was renamed Operation Paperclip by Ordnance Corps (United States Army) officers, who would attach a paperclip to the folders of those rocket experts whom they wished to employ in America.[4] President Truman formally approved Operation Paperclip and expanded it to include one thousand German scientists in a secret directive, circulated on September 3, 1946.[7][8]