Illegal mining reaches Venezuela's famed Angel Falls, threatens treasured national park

Deep in the Amazon, Canaima National Park in Venezuela is a green wonderland. Home to Angel Falls, the tallest uninterrupted waterfall in the world at more than 3,200 feet, it serves as a source of national pride, a showcase of the country's uniqueness and natural beauty, the Venezuelan equivalent of the Grand Canyon, Yellowstone and Niagara Falls all rolled into one.