Mike Giglio, staff writer at The Atlantic, joins the Federalist Radio Hour to discuss his new book on the rise and fall of the ISIS caliphate in the Middle East. Domenech and Giglio discuss his time reporting overseas, his relationships with members of ISIS, the fall of Mosul, and the impact of conflict on the rest of the world. The book is, "Shatter the Nations: ISIS and the War for the Caliphate."