Defense Nuclear Facilities Safety Board, United States

Defense Security Service, United States

Delta Force

Department of State Bureau of Intelligence and Research, United States

Department of State, United States

DIA (Defense Intelligence Agency)

Dial Tone Decoder

Diplomatic Security (DS), United States Bureau

Dirty Tricks

Disinformation

DNA

DNA Fingerprinting

DNA Recognition Instruments

DNA Sequences, Unique

Document Destruction

Document Forgery

DOD (United States Department of Defense)

DOE (United States Department of Energy)

Domestic Emergency Support Team, United States

Domestic Intelligence

Domestic Preparedness Office (NDPO), United States National

Doo Transmitter

Dosimetry

Double Agents

Drop

Drug Control Policy, United States Office of National

Drug Intelligence Estimates

Dual Use Technology

E-2C

Ebola Virus