Gold and silver are having their best year since the Bee Gees were topping music charts in the late 1970s. Investors are snapping up the precious metals as uncertainty grips global markets, ranging from President Donald Trump's tariffs to his blistering attacks on the Federal Reserve. Now gold and silver are on track to post their best annual performances since 1979, when high inflation and crises in the Middle East similarly unnerved investors seeking safe havens to park their cash. Part of the demand ...