Warren Buffett Proves That Insourcing In America Still Works By: Benzinga via Benzinga March 02, 2015 at 19:34 PM EST In his recent annual letter to Berkshire Hathaway Inc.(NYSE: BRK-A) (NYSE: BRK-B) shareholders, billionaire investing icon ... Read More >> Related Stocks: Berkshire Hathaway Berkshire Hathaway