August 19, 2010 7:40 am School District Tells Students and Teachers Not to Become Facebook Friends Florida‘s Lee County School District has issued new guidelines for employees using social networking sites like Twitter and Facebook. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 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