Says he was being used by those with a 'political agenda'
                                
                                
                                    (Newser) -
                                    Erroll Southers, Barack Obama's choice to lead the Transportation Security Administration, withdrew his name today, saying his nomination had become a lightning rod for those with a political agenda. Southers' confirmation has been blocked by Republican Sen. Jim DeMint, who says he was worried Southers would allow TSA employees to...