From the Iranian revolution to the 9/11 and 7/7 attacks, and continued acts of global terrorism by militants in the name of Islam, questions have been raised and charges made regarding the relationship of Islam to religious extremism, violence, suicide bombing and terrorism. A common question often raised is: Why haven’t more Muslims, especially Muslim religious leaders, spoken out and aggressively condemned the attacks of 9/11 and subsequent acts of terrorism? In fact, Muslims have. The relationship of Islam to extremism and terrorism, at home and abroad, remains critical in the twenty-first century. The primary causes of global terrorism, most often political and economic grievances, are sometimes obscured by extremists’ use of religious language and symbolism.