Project Merrimac

Project Merrimac was a Central Intelligence Agency domestic surveillance and infiltration program conducted from 1967 to 1974, targeting anti-war and civil rights organizations in the Washington D.C. metropolitan area. The program was designed to gather intelligence on protest activities that might threaten government facilities or officials, representing a clear violation of the CIA's charter prohibiting domestic operations.

The program involved CIA operatives infiltrating student groups, peace organizations, and civil rights movements to collect information on planned demonstrations, organizational structures, and leadership. Agents posed as sympathetic activists while reporting back to CIA headquarters on internal discussions, membership lists, and protest strategies. The operation particularly focused on groups planning demonstrations near the White House, Capitol, or other government buildings.

Project Merrimac operated in parallel with the larger Operation CHAOS, which conducted broader domestic surveillance of anti-war activists nationwide. While CHAOS focused on suspected foreign influence in the peace movement, Merrimac concentrated specifically on protecting government facilities in the Washington area from potential disruption by demonstrators or radical groups.

The program was disclosed during the 1975 Church Committee investigations into intelligence agency abuses, which found that Merrimac had violated the National Security Act of 1947 by conducting domestic intelligence operations. CIA Director William Colby terminated the program in 1974 as part of broader reforms following Watergate-era revelations about intelligence community overreach.

Documents released through Freedom of Information Act requests revealed that Merrimac maintained files on thousands of American citizens and organizations based solely on their opposition to government policies, not criminal activity or genuine security threats. The program contributed to congressional reforms establishing clearer boundaries between foreign and domestic intelligence operations.