What does the emergency declaration mean for opioid crisis?

President Trump has officially designated the opioid epidemic as a public health emergency. Besides the symbolism, what does the declaration mean for tackling the crisis? William Brangham speaks with Bertha Madras of the President’s Commission on Combatting the Opioid Crisis and Dr. Andrew Kolodny of Brandeis University about the underlying impediments and what needs to be done.