Thousands turn out for 57th anniversary of the March on Washington
Fifty-seven years after Dr. Martin Luther King Jr. delivered his "I Have a Dream" speech at the first March on Washington, thousands gathered once again at the nation's capital to demand racial justice and police reform. Dr. Peniel Joseph, founding director of the Center for the Study of Race and Democracy at the LBJ School at the University of Texas, joins CBSN's Lana Zak to discuss how the foundations laid by civil rights leaders in 1963 helped shape today's demonstration.