Grenades in the French Alps: Protesters clash with police over world's longest tunnel - video

Protesters clashed with policein the Maurienne Valley, south east France on Saturday, as they demonstrated against a tunnel being built through the base of the Alpine range that separatesFrance and Italy. The protesterswere attempting to reach a site where drilling has already begun on whatwillbe the world's longest tunnel, but were blocked by police. The protests were led by Les Soulèvements de la Terre (Earth Uprising) - an umbrella group of several different environmental activist associatio...