As its title suggests, Weisman’s book identifies virulent anti-Semitism as the major existential challenge facing American Jewry, a perpetual nightmare that reemerges, cicada-like, in every generation. The Anti-Defamation League, the Jewish organization that most actively tracks anti-Semitism in the U.S., reported a major spike in anti-Jewish hate in 2017. Weisman himself has been a target. Like other prominent journalists, he had his Twitter account flooded with hundreds upon hundreds of anti-Semitic memes and slurs. He was marked for the onslaught when a user placed triple parentheses around his name, allowing trolls to locate him easily through a clever web-browser tool. He now wields the parentheses defiantly in his Twitter profile. Appropriately, the marks also decorate the title of his book.