In Anne Arundel County, Md., students are asking officials to lift a block on social media websites such as Twitter at school, saying that the restrictions are limiting their education. The student government has adopted as part of its platform advocating for elimination of the block, which affects Wikipedia, Google Images, Facebook and more. "We want to be able to access information that can help us learn and enhance our understanding of certain things we are discussing," said high-school senior Nick Lefavor. "These sites will help with that."