In an exclusive interview with Brian Maass of Denver CBS station KCNC-TV, England also confirmed that abuses worse than those depicted in the photos were carried out at the US-run Abu Ghraib prison near Baghdad, but she declined to discuss them.

England, 21, repeatedly insisted that her actions were dictated by "persons in my higher chain of command."

In the photos, England is seen smiling, cigarette in her mouth, as she leans forward and points at the genitals of a naked, hooded Iraqis. Another photo taken at Abu Ghraib shows her holding a leash that encircles the neck of a naked Iraqi man lying on his side.

"I was instructed by persons in higher rank to stand there and hold this leash and look at the camera," she said.

In Washington, US lawmakers are treated to a three-hour private viewing of unpublished pictures of abuse, while a US television network broadcasts a video shot by a US soldier inside the prison.

Warner, head of the Senate Armed Services Committee, said the Defense Department agreed to make the images available privately to lawmakers only over a three-hour period yesterday.

The photos would then be returned to the Pentagon because they are evidence in a criminal case, he said.

He did not say whether the images would be made public, joining dozens already published and broadcast in the festering scandal.

Meanwhile, two more American soldiers have been ordered to stand trial for abuse although no date for the courts-martial was set, Brig. Gen. Mark Kimmitt announced in Baghdad yesterday.

Sgt. Javal Davis, 26, of Maryland and Staff Sgt. Ivan L. "Chip" Frederick II of Buckingham, Va., were ordered to undergo a general court-martial, Kimmitt said. He said the trial date and venue had not been set.

However, in the interview, England said the actions depicted in the photos were intended to put psychological pressure on the Iraqi prisoners.

"Well, I mean, they [the photos] were for psy-op reasons," she said "And the reasons worked. I mean, so to us, we were doing our job, which meant we were doing what we were told, and the outcome was what they wanted. They'd come back and they'd look at the pictures, and they'd state, 'Oh, that's a good tactic, keep it up. That's working. This is working. Keep doing it. It's getting what we need.'"

England, an army reservist from West Virginia who is four months pregnant, is now stationed at Fort Bragg in North Carolina. The interview was taped Tuesday at Fort Bragg.