Does ISIS really have 3,000 European fighters?

The US only knows of about 12 Americans who are currently in Syria fighting, FBI Director James Comey said Thursday.

Where did the “more than 100 Americans” fighting with IS figure come from?

“When I use a number of more than 100, that means people who have gone and come back, people who have attempted to go and we locked them up, people who have gone and stayed,” Mr. Comey said during an interview with reporters at FBI headquarters, according to the Associated Press.

That sounds very similar to how the Europeans are counting ISIS fighters.

As The Christian Science Monitor reported earlier this month, most political leaders are over-exaggerating the Islamic State domestic terrorism threat.