“The sort of hit discussed here,” he wrote, “is carried out or directed by individuals who are members of the security forces, often military intelligence.” The attacks were ordered at a “senior level,” he continued, but “ ‘death squad’ personnel might often not appear on the official rosters of the security services and do not report for duty to official installations; they wait at home for orders, usually via the phone, or at times are picked up without prior notice to perform a job. They operate in cells so it is difficult to trace the orders up the hierarchy.”

