New book sheds light on secretive family that made OxyContin

The Sackler family is one of the richest families in America, donating millions to some of the world’s most prestigious museums and universities. But the source of that wealth was for many years something of a mystery. William Brangham talks with Patrick Radden Keefe, the author of "Empire of Pain: The Secret History of the Sackler Dynasty," to shed light on the secretive dynasty.