You forgot to mention the fact that the whole issue is over killing someone for switching religions.
After Dec 2014, I'll be able to say what I really think we should do to these people who believe with all their heart and soul that the world should accept, as an "internal matter", the murder of a man for NO reason other than he changed religions. Until then, I think I'll point out that the last well known leader who subscribed to that sort of universal philosophy of absolute religious hatred and actually applied it, was Hitler. I can think of no other comparison than Hitler, that approaches the murderous religious fanaticism of those calling for the death of that one man in Afghanistan, for the "crime" of converting from Islam to Christianity.
But the world is too terrified of Islam, too terrified that any who oppose murder in the name of Islam will also be murdered in the name of Islam, to make any real stand. Come to think about it, that's pretty much how Hitler got away with his murders too, Europeans sitting around in fear. The US tried to do something this time though, and has been nearly universally villified in Europe. How entrenched in Europe will the Islamic councils have to get before Europe recognizes the danger of letting this go on?
The US tried to do something, and got slapped down by the world. I don't think we have the strength to try again, and I don't think we'll do a damn thing in this case because we'll get crapped on no matter what we do or don't do.