Tornado season is off to a wild start in the American Midwest.  Multiple towns in Iowa have been devastated by storms, the small town of Greenfield basically flattened overnight.  At least 35 are injured and five dead.  Across the border in Mexico, a political rally was hit by a freak wind, killing nine and injuring 54 when the stage collapsed.  US Correspondent Richard Arnold told Mike Hosking that the tornado in Greenfield was travelling speeds of up to 265kph, but in Mexico, they’re barely calling it a storm.  He said that it’s tragic and bizarre.  LISTEN ABOVE  See omnystudio.com/listener for privacy information.