National (U.S.)

"A tornado that swept through Oklahoma on Friday was the widest tornado in American history, the National Weather Service said Tuesday."

"WICHITA, Kan. -- A Kansas farmer has sued seed giant Monsanto over last week's discovery of genetically engineered experimental wheat in an 80-acre field in Oregon, claiming the company's gross negligence hurt U.S. growers by driving down wheat prices and causing some international markets to suspend certain imports."

"Declaring a strong desire to deliver New Jersey voters an elected senator in short order, Gov. Chris Christie (R) announced Tuesday that he is setting a special election to fill the late-Sen. Frank Lautenberg's seat for October, with a primary slated for August."

"BEAUMONT, Texas -- The sound was deafening as workers sandblasted a section of the Gulf Coast Project, the southern installment of TransCanada Corp.'s Keystone XL Pipeline project."

"Hurricane season [began] Saturday, and the National Oceanic and Atmospheric Administration is forecasting an active season, with perhaps seven to 11 hurricanes."

"Bee keepers' use of corn syrup and other honey substitutes as bee feed may be contributing to colony collapse by depriving the insects of compounds that strengthen their immune systems, according to a study released on Monday."

"Hundreds of people were being evacuated from their homes in Missouri after a levee was breached Monday night."

"Advocates of chemical safety -- along with activists who have worked a score of other issues -- say they've lost a lion-hearted champion with the death yesterday of Sen. Frank Lautenberg (D-N.J.)."

"WASHINGTON, DC -- Federal officials [Friday] designated 28 trails as national recreation trails, adding roughly 650 miles of trails in 18 states to the National Trails System."

"A year after chemical weed-killers contaminated compost in Vermont, the composting industry is calling for tighter federal regulations on persistent herbicides."