Midwest Pounded by Tornadoes and Wild Weather Massive Sandstorm blankets the Saudi Arabian capital of Riyadh North Korean Rocket Fails; North Korea Celebrates Anniversary Space Shuttle Discovery Makes Last Flight to New Home at Smithsonian Doolittle Tokyo Raiders Honored at Seventieth Anniversary in Dayton Ohio Leads Nation Again in Tree City USA Communities Central Ohio Homeland Security has New Robot Team Member Stanford University Celebrates National Robotics Week with Robot Block Party Wisconsin High School Students Observe Bring your Tractor to School Day NewsDepth Visits Adams County Hong Kong Shopping Mall Presents Exhibition of Preserved Baby Mammoth Young Boy Spots Egg in Peril; Saves Life of Baby Penguin Distracted Walker in California Almost Walks into a Bear Denver Man Has a Great Day with Two Kinds of Good News Veterinarians in England Launch Contest to Slim Down Overweight Pets Dogs Get Plenty of Exercise in Purina Incredible Dog Challenge Four Red River Piglets at San Diego Zoo Love to Play Baby Giraffe Enjoys Sunshine at Bronx Zoo