The co-chair of Harvard’s new antisemitism taskforce abruptly resigned over the weekend — reportedly after she became frustrated that university officials refused to commit to making changes to make the campus safer for Jewish faculty and staff. Harvard officials shockingly announced on Sunday that business professor Raffaella Sadun — who was appointed to the newly-created Presidential Task Force on Combating Antisemitism just last month — had stepped down from her post. Sadun issued a statement that she was “grateful” for a chance to work on the taskforce and that she would continue to work on the issue as a faculty...