> There comes a time when YOU would strap on a bomb belt. Just imagine that They killed half your family and then goes on telling you they will continue doing it...

I don't think this is quite enough to push people over the ledge. If what killed half my family is someone who does not try to justify his actions morally, someone who I can therefore morally compare to a tiger or bear, I wouldn't strap on a bomb belt. But if the killer tries to tell the world he's eradicating evil, and the world high five with them, ...