Larry Johnson flags an excerpt from a Department of Defense press conference with Donald Rumsfeld and Chairman of the Joint Chiefs of Staff Peter Pace. I’ll snip out an even smaller bit of the excerpt, you don’t even need to see the question being answered:

PACE: It is absolutely responsibility of every U.S. service member if they see inhumane treatment being conducted, to intervene, to stop it. . . .

RUMSFELD: I don’t think you mean they have an obligation to physically stop it, it’s to report it.

PACE: If they are physically present when inhumane treatment is taking place, sir, they have an obligation to try to stop it.

Want an explanation of why we torture and who’s responsible? There it is in a nutshell.