Legacy of Himalaya's 'Sherlock Holmes' lives on in digital

In a crowded Kathmandu restaurant far from Nepal's famed icy peaks, Billi Bierling questions climbers about their ascents, preserving each triumph in the Himalayan Database, mountaineering's revered 60-year-old register of success.At a time when each year more climbers are attempting the world's highest peaks than ever before, the task of recording the ascents is even more important. - '40 drawers of reports'- But times have changed.