IRVINE, Calif. -- Gov. Arnold Schwarzenegger on Saturday pledged to ruthlessly hunt down anyone suspected of setting a fast-moving blaze that has burned 27,600-acres in Santiago, and promised swift punishment for scam artists and looters. Authorities believe at least two of the wildfires have suspicious origins and are the result of arson. "If I were one of those people who started the fires I would not sleep soundly," Schwarzenegger said. "We're right behind you -- turn yourself in." "We know in Orange County this was arson," said Orange County Sheriff Michael S. Carona. "This was not some random act that...