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 5:28 Biden condemns antisemitism as attack on democracy during Holocaust remembrance speech 1:20 Would you put pickles in your Dr Pepper? 2:46 FBI gives shocking details in case against man accused in wife's disappearance in Spain 1:20 Gigi Hadid wows in sweeping Met Gala look 1:52 Amanda Seyfried reveals her kids' reaction to her daring metallic Met Gala look