An Iranian academic at the University of Oklahoma has been released from an ICE jail three days after he was taken into custody by federal authorities at an airport in Oklahoma City. Vahid Abedini was flying back after attending a Middle East Studies Association conference in Washington, D.C. He is an assistant professor in Iranian studies and has an H-1B visa to work in the United States. It is unclear why he was detained. The Trump administration has been known to target international students and scholars as part of its immigration crackdown.