Overview: An examination of how the Israeli-Palestinian conflict plays at UC-Berkeley and Columbia University, where sentiments on both sides are strong. At Berkeley, pro-Palestinian students set up mock Israeli checkpoints while Jewish students celebrate Israel Day. At Columbia, provocative speakers stoke debate. Included: Bari Weiss, editor of Current, a Columbia Jewish-affairs journal; and Khadijah Abdul Nabi, president of Turath, the university's Arab cultural organization.