Berkshire Hathaway CEO
Warren Buffett has turned value investing into an art form, piling up the world's second largest individual fortune and persuading millions to mimic the low-tech, buy-and-hold style of stock picking he practices at Berkshire Hathaway. When a financial firm needs a bailout, the "Oracle of Omaha" usually gets a call. His investment rescued bond-trading powerhouse Salomon Brothers in the early '90s. Buffett, 71, is now active in efforts to get federal backing for insurers exposed to losses in future terror attacks.
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