Princeton University in New Jersey. Photo: Yakinodi /Flickr. A planned student vote weighing whether Princeton University should stop using construction equipment manufactured by Caterpillar, Inc. over the company’s business in Israel has prompted pushback from some Jewish students worried about its effect on the campus climate. The referendum , which is set for a campus-wide vote on April 11-13, asks whether Princeton undergraduates should call on the university to “immediately halt usage of all Caterpillar machinery in all ongoing campus construction projects given the violent role that Caterpillar machinery has played in the mass demolition of Palestinian homes, the murder...