Rebel fighters who are now part of Syria's new de facto government have been destroying large shipments of Captagon, an addictive drug that was mass produced by the ousted Assad regime.

What would it mean to classify Mexican drug cartels as "foreign terrorist organizations"? NPR speaks with Mike Vigil, former chief of international operations for the DEA.

Aaron Zelin of the Washington Institute for Near East Policy talks with NPR's Leila Fadel about the group that now controls Syria and why it's so hard to shed the label of "terrorists." ...

As Syria emerges from civil war ... And so it is important to have both of these elements. LEILA FADEL, HOST: You know, I covered Iraq for a long time, and so much that Hay'at Tahrir al-Sham ...

In Syria, new leaders are settling in ... DANIEL ESTRIN, BYLINE: Happy New Year, Leila. FADEL: Hadeel, let's start with you. These comments were made to you in a recent interview you did with ...