"U.K. Home Office Minister Hazel Blears is to meet Muslims leaders across the U.K. to discuss how to tackle religious extremism and terrorism, in the wake of bomb attacks on London that killed at least 52 people.

``Muslim leaders recognize that it isn't enough just to condemn the bombings but that they must also act with us to tackle extremism,'' Blears said.

The question for some is if Muslims have sufficiently condemned the attacks, let alone taken affirmative steps to work with the British police and others to stop Muslim extremism from spreading.