Pencils, books, laptops, those are the tools of students and what you expect to find on a college campus. But here’s what the NYPD found in Hamilton Hall at Columbia University after we were able to arrest the protestors and agitators for commandeering and barricading themselves inside the building. Gas masks, ear plugs, helmets, goggles, tape, hammers, knives, ropes, and a book on TERRORISM. These are not the tools of students protesting, these are the tools of agitators, of people who were wo