40,000 Southern Californians ordered to evacuate amid threat of chemical explosion

An estimated 40,000 people in Orange County, California, have been ordered to evacuate the area over fears that a tank containing a toxic chemical may explode, officials said Friday. Authorities in Orange County said they’re unable to control the valves on a tank at an aerospace manufacturing facility in Garden Grove. “It fails or it blows up,” said Craig Covey, the Orange County Fire Authority incident commander at the scene. Initial evacuation orders were issued Thursday after a “vapor release” at the manufacturing site in Garden Grove. The situation seemed to be stable, but on Friday, the valve on a...