!--StartFragment-->

The recruitment of Americans of all walks of life to join the Islamic State is "unprecedented," according to a study released this week from the George Washington University's Program on Extremism.

The report, titled "ISIS in America: From Retweets to Raqqa," found that the average age of the American Islamic State sympathizer is 26 and the vast majority are male. More than half have traveled or attempted to travel abroad, 40 percent converted to Islam and authorities have made arrests in 21 states, though there are 900 active investigations ongoing in all 50 states.

"The phenomenon of Americans joining jihadist groups is not new, but the size of the ISIS-related radicalization and mobilization is unprecedented," Lorenzo Vidino, director of the program and one of the authors of the report, said in a statement.

Read more on WashingtonExaminer.com