Buffett’s NetJets Countersued by U.S. for Unpaid Taxes By Andrew Harris – Mar 9, 2012 2:51 PM CT NetJets Inc., the private-plane company owned by Warren Buffett’s Berkshire Hathaway Inc. (BRK/A), was countersued by the U.S. over $366 million in taxes and penalties. NetJets in November sued the U.S.,...