Open this photo in gallery: Harvard President Claudine Gay, left, and University of Pennsylvania President Liz Magill listen during a hearing of the House Committee on Education on Capitol Hill, on Dec. 5 in Washington.Mark Schiefelbein/The Associated Press Facing heavy criticism, the University of Pennsylvania’s president walked back some of her remarks given earlier this week at a congressional hearing on campus antisemitism, saying she should have gone further to condemn hate against Jewish students. Penn President Liz Magill was grilled during a five-hour hearing Tuesday, along with Harvard President Claudine Gay and MIT President Sally Kornbluth, on how their...