On this MLK Day, Righting the Rhetoric on King's Memorial

Aired: 1/16/2012 | 0:07:38 | Clip
In remembrance of the civil rights leader Monday, many visitors to the Martin Luther King Jr. National Memorial stopped to read aloud the inspiring words -- and one misquote -- chiseled in granite. Margaret Warner discusses the mistake with the person who first publicized it: the Washington Post's Rachel Manteuffel.