Don't generalise Muslims, Ms. Menon. Its right that everyone has to leave mother earth. But, what if someone tells you that reading Bagvad Gita or Bible or any other sacred text would make you immortal. If you accept this and start reading, then there is no reason why you cannot phantom certain people's action against others. They have been asked to do so to get salvation and be immortal.
What needs to be condemned is not the attacks, rather the thought that went into the attack and the masterminds of the attack. It is them who had a selfish motive.
