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More U.S. Billionaires pledge to give away wealth
By: reuters.comPosted On: 12/12/2010 8:35 A
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Another 17 U.S. billionaires, including Facebook co-founders Mark Zuckerberg and Dustin Moskovitz, have pledged to give away at least half their fortunes in a philanthropic campaign led by Warren Buffett and Bill Gates.