In Midday’s second hour, we travel 50 years into the past to 1965, the height of the civil rights movement. We’ll speak to Julian Zelizer, author of “The Fierce Urgency of Now,” on the political savvy of President Johnson and the fight over the Great Society. And we hear Jim Achmutey’s account of the integration of a high school in rural Georgia -- how a white student's defense of his African-American classmates left a lasting impression on his peers.