It's believed up to 200 Kosovars could be fighting with militant groups like ISIS in Syria and Iraq.
Kosovo is a majority Muslim country, with a tradition of religious tolerance. It's also perhaps Europe's most pro-American country after NATO's intervention against Serbian forces in 1999 forged the new republic.
How could extremism have been fostered in this small, Balkan nation? The BBC’s Linda Pressly reports.
This segment aired on October 9, 2014.