January 28, 2013 6:30 pm Nightclub Safety 101 In the wake of the fatal nightclub fire in Brazil, NBC Washington station News4’s Darcy Spencer reports on what to look for when you’re out and about. US & World Videos 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 2:04 Arrests made, camps removed during pro-Palestinian protest at UConn 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug