Hill: Shares of Barrick Gold (NYSE: GOLD) are up 10% this morning after a filing with the SEC revealed that Berkshire Hathaway has taken a $560 million stake in the company. But for decades, for decades, Warren Buffett has not been shy about the fact that he's not a fan of gold. And Warren Buffett has actually talked about this in the past; to him, an investment in gold isn't a hedge against the economy, it's not a hedge against inflation, it's a hedge against disaster, that's what investing in gold is.