October 10, 2008 12:44 am Defective Tire Valve Stems Could Be Dangerous If you’ve had your tires changed since August 2006, there may be a small part on your car you’re urged to go inspect. Local 0:34 City College of New York goes remote as protests continue 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 3:24 Mayor Adams and the NYPD urge protesters to leave Columbia University