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The Obama administration cut corners before concluding that climate-change pollution can endanger human health, a key finding underpinning costly new regulations, an internal government watchdog said Wednesday.

How important is Twitter in the political revolutions sweeping the Middle East? That was the topic of discussion on stage at the CTIA mobile and wireless convention today in Orlando, Florida and two very different, very strong opinions were voiced. "I don't think anyone in their right mind would say that sending a tweet is the equivalent of activism," said Twitter co-founder Biz Stone, "but it's another tool people can use." Kenneth Roth, executive director of of Human Rights Watch, one of the world's most respected human rights organization, framed things very differently though. He said on stage (above) that mobile technology in general would make it impossible today for something like Nazi Germany to unfold again the way it did historically.