20,000 evacuated in Southern California chemical leak as officials say tank "is going to fail"
By Matthew Rodriguez, Julie Sharp, Chelsea Hylton••CBS News
Southern California officials have expanded an evacuation zone in several Orange County cities over a toxic chemical tank that they say is "actively in crisis."
Orange County officials expanded evacuation orders in several cities on Friday afternoon after an industrial tank containing a flammable and toxic, self-heating substance started leaking at a Garden …