Anti-Semitic rhetoric has been on full display at pro-Palestinian rallies around the world since Hamas attacked Israel this month. In the United States, college students have shown support for Hamas terrorists and called for violence, chanting, "Israel, Israel, you will learn."

At a rally in Sydney, Australia, demonstrators chanted, "Gas the Jews." London police recorded a 1,353 percent increase in anti-Semitic crimes this month compared with the same time last year.