On Sunday, a group of keffiyeh-clad individuals huddled around a computer to discuss the "Palestinian resistance." Charlotte Kates, a member of the Israeli-designated terror group Samidoun, praised Hamas's Oct. 7 terror attack for showing "the potential of a future for Palestine liberated from Zionism." Khaled Barakat, a Popular Front for the Liberation of Palestine activist, lauded airplane hijackings as "one of the most important tactics that the Palestinian resistance have engaged in." While those speakers and other attendees were explicit in their support for terrorism against Jews, the event did not take place in Gaza, Doha, or Tehran. It took...