Pharmaceutical executives appeared before Congress on Tuesday to answer questions about a congressional investigation into drug companies' role in the nation's opioid epidemic, The Washington Post reports. A Cardinal Health executive, George Barrett, apologized for his drug company's slow response to the unprecedented influx of prescription opioids to small towns in West Virginia, while Joseph Mastandrea of Miami-Luken admitted that his company had worsened the opioid crisis. Current and former leaders of McKesson, AmerisourceBergen, and H.D.