| CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. | Watch out for climate 'surprises' | | The long, slow process of climate change may trigger "surprise" shifts that could threaten human communities in years or decades, researchers from the National Academy of Sciences warned Tuesday. |
| 5 questions in deaths | | Four days after the crash that killed actor Paul Walker and Roger Rodas, key questions remain unanswered. Here are five of the biggest: |
| Reid exempts staff from Obamacare | | Democratic Senate Majority Leader Harry Reid, one of Obamacare's architects and staunchest supporters, is also the only top congressional leader to exempt some of his staff from having to buy insurance through the law's new exchanges. |
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