Environmental activist arrested for his traffic-stopping stunt in Los Angeles
                                
                                
                                    (Newser) -
                                    The  Los Angeles Times  describes him as an "aspiring rapper," but Alexander Dunn apparently aspired to snarl traffic and get arrested instead on Wednesday. The 29-year-old performer, sans shirt but with boxer shorts, ascended an exit sign around 8am on one of the 110 Freeway's southbound offramps,...