Harry Truman actually said...
Income, excess-profits, declared value, excess profits, and capital stock tax returns made under the Internal Revenue Code for the years 1939 to 1945, inclusive, shall be open to inspection by the Special Committee established pursuant to Senate Resolution 71, Seventy-seventh Congress, agreed to March 1, 1941, to investigate the operation of the national-defense program, or by any duly authorized subcommittee thereof, for the purpose of carrying out the provisions of the said Senate Resolution 71, Seventy-seventh Congress as continued by various Senate resolutions, include Senate Resolution 55, Seventy-ninth Congress, and subject to the conditions stated in the Treasury Decision relating to the inspection of such returns by that committee, approved by me this date.
07/28/1946