Arizona officials say they will bypass another appeal in the Ninth US Circuit in order to speed up the process. They are asking that a federal judge's injunction against the immigration law be overturned.

Raspberry Pi would be aimed at low-income students and allow video, email, and social networking.

A Duke University study finds high methane levels in ground water near where fracking, or hydraulic fracturing, has occurred. Fracking is a controversial practice to extract natural gas from shale.

AP - The Mississippi River rose Monday to levels not seen in Memphis since the 1930s, swamping homes in low-lying neighborhoods and driving hundreds of people from their homes. But officials were confident the levees would protect the city's world-famous musical landmarks, including Graceland and Beale Street, and that no new areas would have any serious flooding.

AP - Suspicion rose Monday that Pakistan's intelligence service leaked the name of the CIA chief in Islamabad to local media in anger over the raid that killed Osama bin Laden — the second outing of an American covert operative here in six months.

AP - Newt Gingrich, the House speaker who led a national GOP resurgence in the 1990s before facing ethics questions and resigning, is running for president.