A Harvard task force on antisemitism has gotten off to a rocky start, with complaints that the professor chosen to help lead the panel had signed a letter that was critical of Israel, describing it as “a regime of apartheid” for its treatment of Palestinians. Harvard’s new interim president, Alan Garber, announced the formation of two “presidential task forces” on Friday, one to combat antisemitism and the other to combat Islamophobia and anti-Arab bias. The move came less than a month after his predecessor, Claudine Gay, was forced to step down over plagiarism accusations and criticism that she had been...