The current wave of anti-mosque protests around the country represents a new threat to the religious freedom of Muslims in America — a threat directed not just at terrorists who act in the name of Islam, but at all Muslims and Islam itself. Incidents of discrimination and bias aimed at Muslim Americans have been rising since the 9/11 terrorist attacks. But anti-Muslim rhetoric has taken an ominous turn in recent months as a growing number of political and community leaders — some with tea-party affiliations — have begun warning of a “Muslim takeover” of America.