Mohsen Mahdawi, a student at Columbia University, Palestinian and permanent U.S. resident, was detained by immigration authorities and taken into custody during his interview for naturalization in Vermont, multiple outlets reported—marking the second Columbia student to be targeted by the Trump administration. Mahdawi—who attended Columbia and plans to get his master’s degree there in the fall—was born in a refugee camp in the West Bank, is a permanent resident of the U.S. and...