What could possibly make a human being torture another human being?

That’s a question that, as a young boy, I recall asking my grandparents—Holocaust survivors—after they described to me in vivid detail the torture they and other members of my extended family were subjected to by the Nazis during World War II.

It’s a question I returned to earlier this year when I had the opportunity to interview a veteran of the US Army Reserves who was torn up about the torture he says he witnessed and participated in against some “war on terror” detainees while serving as a guard at the Guantanamo Bay prison facility. [That guard, Pfc. Albert Melise, has since been barred from reenlistment for speaking to me.]

There are more stories emerging of atrocities against civilians in Libya, the last apparently involving mass graves of pro-Gaddafi loyalits.

Jeremy Morlock, part of the Army Stryker “kill team” in Afghanistan, plead guilty today to killing three Afghan civilians in an Army court-martial case. Photos of Morlock and his colleagues posing with Afghan corpses were published in the German magazine Der Spiegel this week, stirring controversy about abuse, torture and defilement carried out by enlisted men and women during the occupation.

Any war another atrocity, another group of xenophobes all geared up to do it all over again someplace else.