Wednesday marks the 50th anniversary of Dr. Martin Luther King, Jr.'s legendary "I Have a Dream" speech. Speeches from President Obama and former Presidents Jimmy Carter and Bill Clinton will reflect ... more 
Wednesday marks the 50th anniversary of Dr. Martin Luther King, Jr.'s legendary "I Have a Dream" speech. Speeches from President Obama and former Presidents Jimmy Carter and Bill Clinton will reflect on the progress the U.S. has made in the past 50 years and the challenges that still lie ahead. CBS News' Danielle Nottingham reports from Washington, D.C. less 
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Wed, Aug 28, 2013 2:05 PM EDT