historical record
"More than 1,600 German scientists, engineers, and technicians — some former Nazis — were secretly brought to the United States for government employment after WWII."
Source
Operation Paperclip — Declassified Records
U.S. National Archives records on Operation Paperclip; documented in scholarship (e.g., Annie Jacobsen, 'Operation Paperclip', 2014)
Author
U.S. Government (NARA records)
Date
1945–1959 (declassified later)