Do Muslim minorities have a "special burden" to help track down extremists, as Sajid Javid, the U.K. government's most senior Muslim, said in the aftermath of the terrorist attacks in Paris?

This is a sensitive question for any of Europe's Muslim populations and on Monday, the U.K. government jumped in head first with a letter to 1,000 imams. In it, the religious leaders were asked to carry out their "important responsibility: in explaining and demonstrating how faith and Islam can be part of British identity."

The heated response from the U.K.'s major Muslim organizations left Prime Minister David Cameron flummoxed. Anyone who found fault with the letter "has a problem," he said.