Dan Walters writes in the Sacramento Bee: The messy departure of the chairman and executive director of the Air Resources Board, if nothing else, reflects the extremely intense, largely clandestine struggle in the Capitol over how Gov. Arnold Schwarzenegger's much-ballyhooed anti-global warming crusade is to be implemented. Schwarzenegger says he fired ARB Chairman Robert Sawyer last week because the veteran energy researcher was moving too slowly on cleaning up the ...