0ISIS Leader's 'College' in U.S. CustodyISIS leader Abu Bakr al-Baghdadi spent four years in U.S. custody at Camp Bucca until he was released in 2009. Michael Daly joins CNN to discuss how al-Baghdadi might have paid close attention to the soldiers in order to out think them.Michael DalySpecial CorrespondentUpdated Apr. 14, 2017 3:42PM ET / Published Jun. 17, 2014 6:21PM ET