Sometimes force is the only thing some folks understand - Israel has learnt that the hard way, and so has India, who must now act with the same forcefulness. For starters, India must forthwith cut off all dealings and realtions with the terrorist Paki state. Then she must start mobilization of her rapid-strike forces or start creating them real schnell-like, pronto. As soon as she finds the culprits, she must go after them with massive, disproportional force, just like Israel. The world and the US in particular will definitely support India's just right to defend herself against terrorism.
