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 therefor are such as to authorize the belief that the presence of such individual on board a vessel or within a waterfront facility would be inimical to the security of the United States.
Context
Executive Order 10173—Regulations Relating to the Safeguarding of Vessels, Harbors, Ports, and Waterfront Facilities of the...
10/17/1950