Berkshire Hathaway Inc. (NYSE:BRK.A) (NYSE:BRK.B) doesn’t usually respond to criticism, preferring to explain its decisions in the company’s famous annual shareholders letter, but it seems that Mark Greenblatt at Scripps News has hit a nerve. “Over a century ago, Mark Twain observed ‘Never pick a fight with people who buy ink by the barrel.’ We are about to ignore Twain’s sage advice,” the company wrote in a press release (via Yahoo Finance). Berkshire Hathaway asbestos claims Warren Buffett started taking on asbestos liabilities some years ago with the idea that asbestos claims take a long time to play out, so even…