The devastating U.S. recession of 2008-2009 has highlighted the problems of income inequality and poverty in the world’s richest nation. In 2010, the last year for which data is available, the number of U.S. poor hit a record 46 million. As the country celebrates the Martin Luther King Jr. Day holiday, a look back at the civil rights’ leaders remarks on the subject are enlightening – if only for their continue relevance nearly half a century later: