Pfc. Bradley Manning, who has been imprisoned for nine months on charges of handing government files to WikiLeaks, has not even been tried let alone convicted. Yet the military has been treating him abusively, in a way that conjures creepy memories of how the Bush administration used to treat terror suspects. Inexplicably, it appears to have President Obama’s support to do so.

Private Manning is in solitary confinement at the Marine Corps brig in Quantico, Va. For one hour a day, he is allowed to walk around a room in shackles. He is forced to remove all his clothes every night. And every morning he is required to stand outside his cell, naked, until he passes inspection and is given his clothes back.

Military officials say, without explanation, that these precautions are necessary to prevent Private Manning from injuring himself. They have put him on “prevention of injury” watch, yet his lawyers say there is no indication that he is suicidal and the military has not placed him on a suicide watch. (He apparently made a sarcastic comment about suicide.)

Forced nudity is a classic humiliation technique. During the early years of the Bush administration’s war on terror, C.I.A. interrogators regularly stripped prisoners to break down barriers of resistance, increase compliance and extract information. One C.I.A. report from 2004 said that nudity, along with sleep deprivation and dietary manipulation, was used to create a mind-set in which the prisoner “learns to perceive and value his personal welfare, comfort and immediate needs more than the information he is protecting.”