Marshall Allen & Olga Pierce

Marshall Allen is a reporter for ProPublica. His "Do No Harm: Hospital Care in Las Vegas," written in collaboration with Alex Richards for the Las Vegas Sun, was honored with several journalism awards, including winning the Harvard Kennedy School's 2011 Goldsmith Prize for Investigative Reporting and coming in as a Pulitzer Prize finalist for local reporting. Olga Pierce is the deputy data editor at ProPublica. Previously, she was a reporter at ProPublica, specializing in data-driven stories.