May 20, 2013 9:02 am Used Car Market Changing Sales of used cars are down, but that’s not the case for “certified pre-owned” vehicles. NBC’s Chris Clackum reports, Local 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug 2:28 King Charles returns to public duties amid cancer diagnosis