" Albert Einstein was the most esteemed figure to publicly denounce Operation Paperclip. In an impassioned letter, written on behalf of his FAS colleagues, Einstein appealed directly to President Truman. “We hold these individuals to be potentially dangerous.... Their former eminence as Nazi Party members and supporters raises the issue of their fitness to become American citizens and hold key positions in American industrial, scientific and educational institutions. "

― Annie Jacobsen , Operation Paperclip: The Secret Intelligence Program that Brought Nazi Scientists to America