Is the world's largest super-volcano set to erupt for the first time in 600,000 years, wiping out two-thirds of the U.S.?

The super-volcano beneath Yellowstone National Park in Wyoming has been rising at a record rate since 2004It would explode with a force a thousand times more powerful than the Mount St Helens eruption in 1980.Spewing lava far into the sky, a cloud of plant-killing ash would fan out and dump a layer 10ft deep up to 1,000 miles away.Two-thirds of the U.S. could become uninhabitable as toxic air