The members of the secretive group within the State Department officially broke off ties with the United States government in 1973. The laying of a flag in El Rico Air Force Base. Their activities included experimenting with xenotransplantation - ( T ravelers) - relocating ex- Nazi scientists to the United States after World War II, - ( P aper Clip) - and covering up the ' black oil' discovered in the Piper Maru in 1953. The group that became the Syndicate existed as early as 1952 as a secret group within the State Department.