Israeli Prime Minister Benjamin Netanyahu speaks in Tel Aviv, Oct. 30. Photo: Wang Zhuolun/Zuma Press It is sad that the prime minister of Israel, Benjamin Netanyahu, has to explain why Israel is defending itself after the animalistic and brutal attack by Hamas on Oct. 7 (“The Battle of Civilization,” op-ed, Oct. 31). But you only have to look around and see all the anti-Semitic protests and pro-Hamas support at U.S. universities to wonder what happened after so much was gained after the Nuremberg trials. Many of those ignorant souls, including a few in Congress, should spend a few hours at...