 25 cars derailed, including several tank cars. Sheila Chalmers Curran is the mayor in Mattson. Everything has been mitigated, and there is no danger to the public. I want our residents to be aware that there is no danger at this point. Two pandas left China Wednesday on a 7,300-mile journey to the San Diego Zoo. The two are the first set of giant pandas to enter the U.S. in more than two decades, and children at the zoo today says they can't wait for them to arrive.