Harry Truman actually said...

The Commandant shall not issue a Coast Guard Port Security Card if he is satisfied that the character and habits of life of the applicant th...

The security of the United States is endangered by reason of subversive activity.

Evidence of sabotage or subversive activity involving or endangering any vessel, harbor, port, or waterfront facility shall be reported imme...

All agencies and authorities of the Government of the United States shall, and all state and local authorities and all persons are urged to,...