April 5, 2012 9:16 am Needless Medical Tests Nine medical groups are asking doctors and patients to think twice before ordering dozens of common treatments and practices. Local 3:09 Desarticulan banda criminal dominicana 1:40 Democrats say Big Oil misled public for decades about climate change 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