Since 2011, the percentage saying they are very concerned about Islamic extremism in their country has increased 38 percentage points in France, 29 points in Spain, 21 points in the United Kingdom, 20 points in Germany and 17 points in the United States.
Worries about extremism are higher across the Western countries surveyed than they are in the Muslim countries surveyed. In the U.S., these demographic differences also extend to political party and religion. Republicans and Americans who say religion is important are more likely to be concerned about Islamic extremism than are Democrats and independents, and those who say religion is not important to their daily lives.
