Harry Truman actually said...
I hope that the release of these documents will set this controversy at rest, and will in some measure protect those who have not been able to protect themselves in this debate because of their official positions, and because of the secrecy classification which must necessarily cover a great deal of their work.
Context
Further Statement by the President on the Decision To Withdraw U.S. Forces from Korea, 1947-1949.
11/01/1952