David Sokol, left, chairman of MidAmerican Energy Holding Comapny, shakes hands with Wang Chuanfu, president of BYD Company Limited, during their joint press conference in Hong Kong Monday, Sept. 29, 2008. MidAmerican Energy Holding Company and Berkshire Hathaway announced strategic investment in BYD Company Limited. AP Photo/Kin Cheung)

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