From a 2002 WaPo article on interrogations in Afghanistan:

After apprehending suspects, U.S. take-down teams -- a mix of military special forces, FBI agents, CIA case officers and local allies -- aim to disorient and intimidate them on the way to detention facilities.

According to Americans with direct knowledge and others who have witnessed the treatment, captives are often "softened up" by MPs and U.S. Army Special Forces troops who beat them up and confine them in tiny rooms. The alleged terrorists are commonly blindfolded and thrown into walls, bound in painful positions, subjected to loud noises and deprived of sleep. The tone of intimidation and fear is the beginning, they said, of a process of piercing a prisoner's resistance.

The take-down teams often "package" prisoners for transport, fitting them with hoods and gags, and binding them to stretchers with duct tape.

Bush administration appointees and career national security officials acknowledged that, as one of them put it, "our guys may kick them around a little bit in the adrenaline of the immediate aftermath." Another said U.S. personnel are scrupulous in providing medical care to captives, adding in a deadpan voice, that "pain control [in wounded patients] is a very subjective thing."