CIA’s Global Response Staff (GRS) Part of the expansion of the CIA’s paramilitary capabilities, GRS units are *secret* security forces created after the Sept. 11, 2001, attacks. Ty Woods and Glen Doherty were both members of the CIA’s GRS, an organization that has recruited hundreds of former U.S. Special Forces operatives and veterans of police department SWAT teams to serve as armed guards to provide a layer of security for CIA officers in high-risk outposts, whose counterterrorism assignments carry a level of risk. Was David Ubben working for the GRS as a contractor ??