Wealth gap may help explain phenomenon
                                
                                
                                    (Newser) -
                                    For four decades, pollsters have been asking Americans to identify themselves by class; typically, most call themselves middle- or working-class. In the latest edition of the survey, however, a record 8.4% have dubbed themselves lower-class, the  Los Angeles Times  reports. That's a change from previous economic downturns, when...