Nobody "asked for it." To imply this is really going over the line. It's one thing for people to attack military targets, human or otherwise. It is utterly contemptible to attack civilians, and there's no justification for that. None at all. The bombers have accomplished nothing except killing the children of bereaved parents, the fathers and mothers of orphaned children--the brothers and sisters that might have been your own.
I don't care what crimes, real or otherwise, can be placed at the doorstep of any nation or its government. This kind of cowardly, despicable act against civilians can never be condoned in any way.