Can you spot the error in the above paragraph? It's the subject of one of our favorite Post corrections in ages (which we can't find online yet, sorry):

A Jan. 14 Nation in Brief item incorrectly identified the organization led by Isaac Newton Farris Jr. as the Martin Luther King Jr. Center for Nonsocial Violent Change. The organization's name is the Martin Luther King Jr. Center for Nonviolent Social Change.

Nation In Brief [WP]