CNN's National Security Analyst, Peter Bergen, asks this important question: "11 years after 9/11, who are the terrorists?" A study published by the New America Foundation concludes that the sources of terror in the U.S. have been diverse, including "jihadists" but also those with anti-Semitic, Neo-Nazi, or extreme anti-government views. This study found that "jihadist terrorists" (i.e. those motivated by Al-Qaeda or like-minded groups) accounted for half of terrorism deaths. In summary, the study suggests that "law enforcement's tendency to regard Muslim-American communities as the most likely source of terrorism risks missing the threat from other extremists."