Cruelest Folk Ever?

Me and my sister were looking at this strange mural in the Mayan exhibition at the National Gallery of Art:

The high point of the exhibition is a recreation—more vivid than the eroded original found in the Mexican jungle—of a mural showing captives being paraded after a battle before the victorious king and having their fingernails ripped out.

We were chatting with each other about it, trying to figure out what was going on, when a guy who'd overheard us started explaining it to us. It was prisoners getting their fingernails pulled out, he explained, and he pointed at one figure saying "That one's got a spear through him. He's dead." We're saying "Ohhh" when he adds, "It's like that prison in Iraq."
"Oh, yeah?" I said, "Where's the Hanes for Her?"
My sister tries to head me off and says "Maybe he means a prison under Saddam."
He said, "No, the prison where we tortured Iraqis."
I pointed at the mural and said, "There's no underwear on their heads!"
My sister took my arm and led me away.

The nasty frat-boy cruelty of those dumb ass MPs has now been enthroned as the worst act of depravity in the history of mankind in the minds of some people. That someone could look at mural of bloodthirsty Mayans and think of Abu Ghraib blows my mind. Those stupid MPs disgraced us all with their antics and the Hate America crowd has taken it and ran with it.
This one's going to have a long half-life.