Most Americans who joined ISIS don't come back. What happens to the rest?

The El Hassani family, now being held in Northern Syria by Kurdish forces, are not the only Americans who went to land controlled by the Islamic State -- there are dozens known to have ventured to the so-called caliphate since 2014. What should happen to those families and their children now? Amna Nawaz explores the dilemma with Seamus Hughes of George Washington University. Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Snapchat: @pbsnews Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe