CAIRO (AP) — Students held anti-government protests at universities across Iran's capital on Monday, according to witnesses and videos circulating online, in a new sign of unrest as U.S. forces gather in the region for possible strikes . The protests, in which many students expressed support for the exiled crown prince of Iran's long-deposed monarchy, began over the weekend. Demonstrations erupted on at least three university campuses on Monday, in one instance leading to scuffles with the