Sean Swarner is gearing up to journey to the North Pole in April, making him the first cancer survivor to complete the Explorers Grand Slam, which entails climbing the highest peaks on every continent and visiting both poles. Jim Axelrod has more.
U.S. - CBSNews.com, CBS News: Nation
Thu, 03/23/2017 - 8:41pm
Sean Swarner is gearing up to journey to the North Pole in April, making him the first cancer survivor to complete the Explorers Grand Slam, which entails climbing the highest peaks on every continent and visiting both poles. Jim Axelrod has more.