Journeys to the Mountaintop From: 60 Minutes Overtime Three Heroes Project climbers reflect on their paths from catastropic loss to climbing some of the world's highest peaks "There's no limit to what anyone can really do, regardless of what you have gone through," says Marine Cpl. Kionte Stoey, Cpl. Storey, Cpl. Brad Ivanchan, and SSGY. Mark Zambon all lost their legs while serving in Afganistan. In these 60 Minutes Overtime extras, the men talk with Lara Logan about loss, recovery, and what it means to climb a mountain. Brad Ivanchan summits South America's Mt. Aconcagua Kionte Storey summits Mt. Vinson in Antarctica Mark Zambon summits Mt. Kilimanjaro in Tanzania Learning to Walk Again Read the article and view the videos at: http://www.cbsnews.com/news/journeys-to-the-mountaintop/ --- Conquering the Impossible From: 60 Minutes - 01/11/2015 Wounded veterans are using their hearts and minds to summit some of the world's tallest mountains and overcome the disabilities war has dealt them Read the script and view the video at: http://www.cbsnews.com/news/the-heroes-project-60-minutes-lara-logan/