Sorry to tell Sithara: Most of these worst people are brainwashed when they are kids and many of them are sleeper cells. It is hard to find them and even if could, it is hard to educate them. Their heart will be frozen and they will be like robots. Only accept commands from master and nothing is accepted from others.

I don't stick with "atom bombing". It will kill many innocents. I am sure there is another way but I guess, by the time we found better way, it will be too late.