More Bombings....

I seriously wonder what are the extremists up to. New Delhi got bombed. I wonder why India, of all places, will get bombed? What is the purpose?

Is it because India opened the Kashmir border to help the Pakistani quake victims? In that case, countries get bombed for butting into other countries' business, and countries still get bombed for helping other countries.

I just cannot understand why people must harm others for no justifiable reasons.