ISIS: The Inside Story Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Iraqi Turkmen forces patrol a checkpoint in the northern city of Tuz Khurmatu on June 21, 2014, close to locations of jihadist Islamic State of Iraq and the Levant (ISIL) fighters. ( KARIM SAHIB/AFP / Getty ) Produced by PRI and WNYC