Harry Truman actually said...
I enjoin upon all officers of the United States charged with the execution of the laws thereof the utmost diligence in preventing violations of section 215 of the Immigration and Nationality Act and this proclamation, including the regulations of the Secretary of State incorporated herein and made a part hereof, and in bringing to trial and punishment any persons violating any provision of that section or of this proclamation.
01/16/1953