The cold weather is the most talked-about feature of this weekend’s World Cup biathlon races in Kontiolahti, Finland, but the U.S. team is lobbying hard for that to change. After putting two racers in the top six in Saturday’s men’s sprint – they were the only team to do so – the storyline might become the red-hot Americans, not the frozen thermometers. “Today was obviously a great day for the team,” World Cup veteran Tim...