Today:
Fresh Air: John Leland, author of Happiness Is a Choice You Make: Lessons from a Year Among the Oldest Old (Sarah Crichton Books, $26, 9780374168186).
Tomorrow:
Daily Show: Cecile Richards, author of Make Trouble: Standing Up, Speaking Out, and Finding the Courage to Lead--My Life Story (Touchstone, $27, 9781501187599).