Please check this video about the Protect IP and SOPA bills now in Congress that would allow the government to censor sites from the Internet without review.
As Teacher Librarian Joyce Valenza recently wrote in her blog, these "Two pieces of proposed legislation could change the game completely for those of us who teach, write, share, and create online. And for our students. And for the sites that host our content. And for the sites that help us access media and information. And for our understandings about fair use."
For some more information, check this infographic, and visit americancensorship.org to take action and contact your legislators.