Protests April 30, 2024 7:20 pm NYPD enters Columbia University in riot gear to clear protest New York police officers arrived at Columbia University shortly after 9 p.m. Tuesday night to clear protesters barricaded inside Hamilton Hall. US & World Videos 1:13 1 dead, 30 hospitalized after plane hit with severe turbulence 2:42 Jennifer Lopez reveals how she came up with iconic one-liner in ‘Atlas' 2:42 Nina Dobrev hospitalized after bike accident 5:59 James Arthur meets bride-to-be from viral concert proposal 1:23 Jennifer Lopez and Ben Affleck reunite amid split rumors