August 27, 2017 1:34 pm ‘Unprecedented Flooding' Hammers Houston The National Weather Service says the floods hitting Houston, Texas, are unprecedented. See some of the flooding and hear from Houston Mayor Sylvester Turner on why he did not order mandatory evacuations. Local 14:23 NYPD arrests around 100 protesters at Columbia University 29:11 NYPD moves in on protesters at Columbia University making dozens of arrests 1:45 NYPD enters Columbia University in riot gear to clear protest 1:14 El Minuto 4/30 Spanish Edition 1:02 El Minuto 4/30 English Edition