Jeff Tietz returns to the story of teenage detainee Omar Khadr, who he profiled for Rolling Stone back in 2006:

MPs uncuffed Omar’s arms, pulled them behind his back, and recuffed them to his legs, straining them badly at their sockets. At the junction of his arms and legs he was again bolted to the floor and left alone. The degree of pain a human body experiences in this from of “stress positioning” can quickly lead to delirium, and ultimately to unconsciousness. Before that happened, the MPs returned, forced Omar onto his knees, and cuffed his wrists and ankles together behind his back. This made his body into a kind of bow, his torso convex and rigid, right at the limit of its flexibility. The force of his cuffed wrists straining upward against his cuffed ankles drove his kneecaps into the concrete floor. The guards left.