Tourists stand in front of the Lincoln Memorial in Washington, Tuesday, Aug. 27, 2013, as they are photographed. Preparations for the 50th anniversary of the March On Washington celebrations that will be held Wednesday, Aug, 28, 2013 are underway. Barack Obama was 2 years old and growing up in Hawaii when Martin Luther King Jr. delivered his “I Have a Dream” speech from the steps of the Lincoln Memorial. Fifty years later, the nation’s first black president will stand as the most high-profile example of the racial progress King espoused, delivering remarks at a nationwide commemoration of the 1963 demonstration for jobs, economic justice and racial equality. (AP Photo/Carolyn Kaster)