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The founder of Tesla Motors is among the new signatories who have promised to give away half of their wealth.
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Billionaire Warren Buffett was tested for prostate cancer at an age when most men are not. The evidence suggests that in most cases the harms of treatment of prostate cancer in elderly men outweigh its benefits.
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Warren Buffett, 81, has been diagnosed with prostate cancer, his Berkshire Hathaway company announced Tuesday afternoon. The cancer is at Stage 1, according to MarketWatch. The billionaire investor says that his condition is not life-threatening.