In the Grand Canyon, uranium mining threatens a tribe's survival

The Havasupai are attempting to fight back against the operation of a uranium mine that they say could contaminate their sole water sourceEd Tilousi knelt down next to the crystal-clear turquoise creek. The only sounds were the gurgling of the current and the sawing of cicadas in a pecan nut tree as the hot sun made the red rock canyon walls towering above him glow.Downstream, the creek becomes a 100ft-high waterfall, tumbling into a brilliant blue pool then making more cascades before it emptie