Race relations appear to be on decline in U.S., CBS News poll

      |More than four and half years into Barack Obama's presidency, race relations in America seem to be on the decline. In a CBS News poll, 57 percent of people now describe race relations as "generally good." In 2009 that number was 66 percent. On the 50th anniversary of MLK's speech during the March on Washington, Jeff Pegues takes a look back at how the president has addressed race.