LAGUNA NIGUEL - Dismiss them if you like, but these people baring their behinds to passing trains are your neighbors, your children's teachers, your attorneys, your policemen, your World War II veterans and yes, even your mothers! Once they were a bunch – a small bunch – of crazies. Now they are a nation. You had ladies from the Red Hat Society standing next to members of the Hessians motorcycle gang, standing next to a group of nudists, standing next to a 70-year-old (normally sedate) mom standing next to an avowed libertarian. All laughing, chatting and waving. With their pants...