Buffett's Berkshire nears deal for Precision Castparts: WSJ

(Reuters) - Warren Buffett's Berkshire Hathaway Inc is nearing an agreement to buy Precision Castparts Corp , in what could be the company's largest purchase ever, the Wall Street Journal said on Saturday, citing people familiar with the matter. The purchase of Precision Castparts, which makes aircraft components and energy-production equipment, could be announced as soon as next week and cost more than $30 billion, assuming typical premiums for mergers, the newspaper said. Precision C