August 28, 2013
The crowd is seen during the commemoration of the 50th anniversary of the March on Washington and Reverend Martin Luther King Jr.'s "I have a dream" speech at the Lincoln Memorial in Washington on Wednesday. (Reuters/Aug. 28, 2013)
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America is struggling to fully realize the vision that civil rights leader Martin Luther King described in his famous "I have a dream" speech 50 years ago, as the goal of economic security for all remains elusive, President Barack Obama said on Wednesday.