General Motors is reportedly working on a plug-in hybrid that could be on sale by the end of 2007. Plus: The 2007 Toyota Camry Hybrid looks like a winner and could become the most popular of the breed. In Autopia .
See if you can figure out what's up with a letter to the New England Journal of Medicine detailing a case of fatal bird flu in China. Someone tries to block the letter’s publication -- is it the letter writer? In Bodyhack.
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