Spurred by the birth of his son, novelist Jonathan Safran Foer investigates the system that puts meat on our plates.

George Washington University law professor and former prosecutor Paul Butler believes that, in order to fight for justice, Americans must sometimes fight the power of the justice system. He speaks with host Michel Martin about his new book, "Let's Get Free: A Hip Hop Theory of Justice," and his vision for justice policy.

The 60th annual National Book Awards were handed out Wednesday night in New York. Colum McCann's Let the Great World Spin, a novel about daring, luck and mortality in 1970s New York, won the fiction prize. T.J. Stiles' biography of Cornelius Vanderbilt, The First Tycoon, was the nonfiction winner, and Keith Waldrop's Transcendental Studies: A Trilogy won for poetry.