Could Africa’s fabled Mount Kilimanjaro be heading for a cataclysm?

In 1980 Mount St. Helens in Washington State suffered a catastrophic landslide that released seething volcanic gases and rock fragments in a cataclysm that destroyed hundreds of square miles of forest. Could Africa's fabled Mount Kilimanjaro be heading for the same fate? NOVA accompanies an expedition up Kilimanjaro to learn what the future holds for the world's tallest volcano.