of the ???lazy,??? ???shiftless??? black man.??? Van Jones, Obama???s erstwhile ???green-jobs czar,??? said in a web chat that the slogan set off ???racial fire alarms.??? But as the Romney campaign explained, the slogan was a tribute to Margaret Thatcher???s Conservative party, whose ???Labour Isn???t Working??? poster, designed in 1978 when the Iron Lady was running for prime minister, was name