Hawaii “lava chaser” and photographer Demian Barrios has seen the Kilauea volcano up close, and tells Here & Now’s Jeremy Hobson about how he stays safe. Also, Democratic strategist Jamal Simmons and Republican strategist Paris Dennard join us to discuss results of primaries in four states Tuesday, and other news from Washington. And despite opposition from researchers and other critics, the vaping industry is now worth billions of dollars, and some worry that the trend has taken hold in high schools around the country. We hear from the director of the Center for Tobacco Control Research and Education at the University of California San Francisco, who says research shows e-cigarettes are linked with significant health problems. That and more, in hour two of Here & Now’s May 16, 2018 full broadcast.