'Fentanyl, Inc.' author Ben Westhoff says the synthetic opioid, while useful in hospitals, is killing more Americans as a street drug than any other in U.S. history. More than 70,000 Americans died from drug overdoses last year. Westhoff talks about how it moves from China to your corner.

Also, book critic Maureen Corrigan reviews 'The Yellow House,' Sarah M. Broom's extraordinary memoir about the New Orleans home in which she grew up.