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Subject
- Hollings, Ernest F., 1922-4
- Terrorism--Prevention.[remove]4
- Harbors--Security measures--United States.2
- Ports of entry--Security measures--United States.2
- Airports--Security measures.1
- National Security Council (U.S.)1
- National security--United States--Decision making.1
- September 11 Terrorist Attacks, 2001.1
- United States. Dept. of Homeland Security.1