Among the CIA men coming in and out of Q Street were several who later came under investigation by the House Select Committee on Assassinations and other probes for their possible connection to the president’s murder. And on the weekend of the assassination, Dulles hunkered down for unexplained reasons at a secret CIA facility in northern Virginia known as “the Farm,” despite the fact that he had been removed from the agency two years earlier. Such was the odd swirl of activity around the “retired” Dulles.