Scores of anti-Israeli protesters at the University of Pennsylvania stormed the campus green and set up an encampment Thursday as the Ivy League joined the growing list of schools being overrun by demonstrators. Jewish UPenn students told The Post that while the protests were largely peaceful, they’re worried that the situation could spiral out of control. “It’s basically turning into what’s going on at Columbia or some of the other schools,” Abraham Franchetti, a sophomore student studying journalism, told The Post. “I think the bottom line is they need to clear out this encampment just like the folks did at...