Buying gold bars from Costco is just about the easiest way to get your hands on the precious metal — if you're lucky enough to find them in stock. Gold (GC=F) has been surging all year, with gold futures reaching yet another high Friday. However, the surprising announcement of additional tariffs on gold bars by US Customs and Border Protection (CBP) has stymied would-be gold buyers. Scott Travers, editor in chief of COINage magazine, said that the new tariff didn't appear to apply to consumer gold buyers — however, he added that published guidelines are "ambiguous." He noted that the 39% tariff ruling ... (full story)