Everest's Sherpas fear for livelihood after killer avalanche

The Everest circus is leaving town. With the decision to cancel climbing this year, Sherpas from the 39 expeditions camped at the foot of the mountain are dropping tents and packing gear. Helicopters fly over the Khumbu Icefall that leads into the Western Cwm, recovering equipment stashed there before the accident that killed 16 Sherpas and other high-altitude workers on 18 April.