September 21, 2012 11:12 am Education Nation: Promoting S.T.E.M. Maryland schools place emphasis on Science, Technology, Engineering and Math. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 2:56 Police putting up barricades on UCLA campus after overnight brawl 4:00 Firecrackers thrown at pro-Palestinian encampment during protester clash at UCLA 1:45 NYPD enters Columbia University in riot gear to clear protest