Among certain radio talk show hosts, bloggers and their followers, being called a cracker was a high compliment yesterday. They seized upon a comment made Thursday by state Senate leader Don Perata, D-Oakland, who talked about “all these crackers down in . . . San Diego, taking on the governor” over immigration issues. Perata, who made the comment during a news conference, was referring to a forum in La Mesa with Gov. Arnold Schwarzenegger last week where some accused him of being soft on illegal immigration. Schwarzenegger later said he was surprised at the “intensity of the prejudice” of some...