Harry Truman actually said...

"I ordered it sent."

"After the effective date of the rules and regulations hereinafter authorized, no alien shall enter or attempt to enter the United States unless he is in possession of a valid unexpired permit to enter..."

"Notwithstanding the provisions of the foregoing paragraphs (a) and (b), no alien applying for admission, even with a valid permit to enter, shall enter or be permitted to enter the United States if it..."

"No permit to enter shall be issued to an alien if it appears to the satisfaction of the issuing officer, or the Secretary of State, that the alien's entry would be prejudicial to the interests of the ..."