It's no religion - it's a movement of people determined to kill everyone on the planet who is not one of them. The world fought Hitler, but since these people call themselves a "religion," they're free to go and spread their word - and, in fact, the US has a VISA (for religious people) to invite them here (to spread their message of intolerance and hatred).
If they execute this Afghan man, it would be fair justice for our country to consider banning their clerics from entering our country on VISAs from that point forward.
Doesn't Karzai have any say in this?
Being that most of their clerics are extremists, I say ban them, exile them all anyway