Did anyone see (UK) the BBC documentary drama about the Super Volcano at Yellowstone National Park. They reckon it will be 2,500 times bigger than the Mount St Helen's Volcano. And its due to go off !!!! That'll bugger up the price of US real estate. They think the ash will cover 3/4 of the US. http://www.bbc.co.uk/sn/tvradio/programmes/supervolcano/index.shtml It was a good programme, though time to move if you live within 1000km of the Yellowstone Caldera, as you may only have 70,000 years before it explodes.