Warren Buffett's shock bet on a gold miner is 'encouraging,' Berkshire Hathaway shareholder Darren Pollock says

· *Warren Buffett's Berkshire Hathaway invested in a gold miner last quarter, even though the billionaire investor has repeatedly warned against betting on the precious metal.*
· *Berkshire's new stake in Barrick Gold is "encouraging,"** said Darren Pollock, a portfolio manager at Cheviot Value Management, which owns both...