Revolutionary Proletarian Initiative Nuclei (NIPR)

Revolutionary United Front (RUF)

Revolutionary War, Espionage and Intelligence

RF Detection

Ricin

Robotic Vehicles

Romania, Intelligence and Security

Room 40

Rosenberg (Ethel and Julius) Espionage Case

Russia, Intelligence and Security

Russian Nuclear Materials, Security Issues

Sabotage

Salafist Group for Call and Combat (GSPC)

Salmonella and Salmonella Food Poisoning

Sandia National Laboratories

Sarin Gas

Satellite Technology Exports to the People's Republic of China (PRC)

Satellites, Non-Governmental High Resolution

Satellites, Spy

Saudi Arabia, Intelligence and Security

Scanning Technologies

SEAL Teams

Secret Service, United States

Secret Writing

Security Clearance Investigations

Security, Infrastructure Protection, and Counterterrorism, United States National Coordinator

Security Policy Board, United States

Seismograph

Seismology for Monitoring Explosions

Senate Select Committee on Intelligence, United States