Protests surge at US universities over Gaza conflict, spreading from Columbia to NYU and Yale. Hundreds rally at Yale in Connecticut and NYU in Manhattan, urging disassociation from Israeli-linked weapon makers. Tent camps dismantled, with over 45 detained in New Haven. At NYU, demonstrators demand divestment from Israel-supporting companies; dozens detained. Columbia shifts to online learning amid tensions, with police intervention in recent clashes and tent removals.