This article has been updated to include new information about the number of arrests at Columbia University on Thursday. Columbia’s exceptionally poised president, Nemat Shafik, clearly has no intention of going down like the former heads of Harvard and the University of Pennsylvania, both driven from their jobs following disastrous appearances before a congressional committee investigating campus antisemitism. Testifying before the same panel on Wednesday, she readily agreed with Republicans’ premise that pro-Palestinian activism at Columbia is shot through with anti-Jewish bigotry, and explained how, under her leadership, Columbia is cracking down. Fifteen students, she said, had been suspended, and...