South Korean hearts have been captured at the Winter Olympics in a way no-one expected. The understated, nerdy but cool Korean women's curlers are slaying giants and could win a medal, reports the BBC's Stephen McDonell in Pyeongchang. Sure, there are the speed skaters, the two-man bobsleigh, the joint North-South women's hockey team and a host of other local athletes competing their socks off at
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