The world's largest celebration of science and engineering, the USA Science & Engineering Festival, has announced its return to Washington, D.C., April 28-29, 2012, and TMT will once again be a sponsor and exhibitor. Adam Savage and Jamie Hyneman, hosts of the Discovery Channel's hit TV series MythBusters, and Bill Nye the Science Guy are among the science superstars signed up to join the Festival Expo at the Walter E. Washington Convention Center and other key locations in the greater District of Columbia area. The 2012 Festival will include a new book fair and career pavilion as part of the Finale Expo.