"In 1966 in a small town in Louisiana, a 19-year-old black man named Gary Duncan pulled his car off the road to stop a fight. Duncan was arrested a few minutes later for the crime of putting his hand on the arm of a white child. Rather than accepting his fate, Duncan found Richard Sobol, a brilliant, 29-year-old lawyer from New York who was the only white attorney at "the most radical law firm" in New Orleans. Against them stood one of the most powerful...