Scientists Warn Supervolcano Will Destroy U.S.

Scientists Warn Supervolcano Will Destroy U.S. : "Some of the world's smartest geophysicists aren't sleeping well anymore. Perhaps their dreams are filled with nightmares—if so, it wouldn't be surprising since what they thought they knew about volcanoes wasn't quite right. But now they know the truth—the terrifying reality—supervolcanoes are activating and can destroy America at any time. Maybe in 100 years...or maybe as early as next week..."