Ari Shapiro has ... Bowl in 2009, Shapiro has performed live at many of the world's most storied venues, including Carnegie Hall in New York, L'Olympia in Paris, and Mount Lycabettus in Athens.

NPR's Ari Shapiro speaks with Caitlin Rivers of Johns Hopkins Bloomberg School of Public Health about long-term implications of measles outbreaks in West Texas, New Mexico and a dozen other states.