The old saying "you can't go home again" is on point when it comes to Islamic State fighters trying to return to their home countries.  Indonesia and Malaysia saw hundreds of citizens leave for Syria's battlefields, and now those governments don't want them back.

The Crisis Next Door host Jason Brooks talks about the problem with Colin Clarke,  Assistant Teaching Professor at Carnegie Mellon University's Institute for Policy and Research and a Research Fellow at the SoufanCenter.   Colin also authored  After the Caliphate: The Islamic State & the Future Terrorist Diaspora.