Pathogens

Patriot Act Terrorist Exclusion List

Patriot Act, United States

Patriot Missile System

Pearl Harbor, Japanese Attack on

People Against Gangsterism and Drugs (PAGAD)

Persian Gulf War

Peru, Intelligence and Security

Petroleum Reserves, Determination

PFIAB (President's Foreign Intelligence Advisory Board)

Phoenix Program

Photo Alteration

Photographic Interpretation Center (NPIC), United States National

Photographic Resolution

Photography, High-Altitude

Playfair Cipher

Plum Island Animal Disease Center

Poland, Intelligence and Security

Politics: the Briefings of United States Presidential Candidates

Pollard Espionage Case

Polygraphs

Polymerase Chain Reaction (PCR)

Popular Front for the Liberation of Palestine (PFLP)

Popular Front for the Liberation of Palestine-General Command (PFLP-GC)

Port Security

PORTPASS (Port Passenger Accelerated Service System)

Portugal, Intelligence and Security

Postal Security

Postal Service (USPS), United States

Potassium Iodide