It may be early in the season, but wildfires are already threatening communities in western and northern Canada. Alberta and British Columbia are battling more than 160 wildfires. But it’s two fires of note that are causing the most concern — a growing fire near Fort Nelson, B.C. and an out-of-control fire in Fort McMurray, Alta. Alissa Thibeault reports from B.C., where the Parker Lake blaze has more than doubled since Friday.