Partly Facetious: who is to blame for beheading of the US soldier?

"Now the Iraqis have shown a video on the website beheading a 26 year old American man..."
"The Bush administration claims that the Iraqi prisoner atrocities pale in comparison to this one act."
"I don't know. I think atrocities against numerous Iraqi prisoners by both the Americans and Poodle's forces are pretty horrendous. And they have also killed people in their custody - both Afghans and Iraqis. By beating them to death - so is a beheading worse than beating someone to death? I don't know! And few people can sit back and say let justice take its course. Revenge is after all quite sweet."
"When will this cruelty end?"
"To me it seems like the Israeli-Palestinian syndrome where there is so much hatred for the other side that there is no end in sight to the violence. Each side maintains that they are on the side of right and without going into who is right and who is wrong from a political perspective the fact remains that both sides are resorting to violence against essentially unarmed civilians."
"That's the price of urban warfare."
"I guess. But blame must lie somewhere."
"Well, to be honest I hated what the American and British soldiers did to the Iraqi prisoners but I can't lay the blame there. The blame has to lie with the world. The world watched President Bush go gung-ho with Afghan prisoners by declaring them enemy non-combatants but at the time we all commiserated with the Americans on what they had suffered on September 11."
"But no one, and I mean not one country, would have denied America that particular war!"
"I am not referring to the war, I am referring to the way they treated their enemies - it was inhuman and continues to be inhuman."
"Yes, but Iraq was always different. Their excuses for war were flimsy and even substantial parts of their own people opposed it. Had they had a referendum I am sure they would have received a no vote for going to war against Iraq. These two jokers, Bush and his Poodle, went gung-ho against a poorly armed country, without caring that war preparations must include providing guidance to their soldiers that they must not take their hatred of their enemies out on those who they get their hands on."
"But beheading that poor US man..."
"That too is cruel. I cannot find it in my heart to forgive his executioners in spite of American government and soldiers' obvious cruelty."
"I agree - it's the Israeli-Palestinian syndrome, isn't it? Hatred and more hatred except the Israelis are open about their hatred for the Palestinians while the Americans seem to be rather duplicitous but in such a naïve way that they fool no one, not even their own people."
"The world needs to get rid of these two leaders before it can move towards peace I think."