Columbia University says federal immigration agents detained a student after misrepresenting themselves to gain entry to a residence hall. Columbia's acting president, Claire Shipman, said agents from the Department of Homeland Security entered the residence at around 6:30 a.m. on Thursday under the guise of searching for a missing person. The university did not provide further information about who the student is or why they were detained. DHS did not respond to questions from The Associated Press. The incident adds to growing attention on federal agents using disguises to make arrests. Columbia said campus rules require a warrant or subpoena for non-public areas.
