Andrew Cole experienced two instances of antisemitism in the last several months. The first incident wasn’t intended for his ears. The second one was. Before recounting the events, Cole, a 20-year-old sophomore at the University of Pittsburgh, said he needed space. He walked a few feet away, paused and explained how he grew up in Ridgewood, New Jersey, a place where he could count the number of Jewish classmates on his hands. High school was only a couple years ago but a lot has changed, he said. There was a pandemic, students were sent home from college and classes went...