In hour two of Here & Now’s April 18, 2018 full broadcast, chemical weapons inspectors still haven’t entered Douma, where the U.S., U.K. and France say the Syrian government used poison gas to kill more than 40 people on April 7. We get the latest from a chemical weapons specialist. Also, a team of investigators from the National Transportation Safety Board has been sent to Philadelphia to figure out why an engine on a Southwest plane blew apart in midair Tuesday, shattering a window and nearly sucking a passenger outside. We hear more from a Wall Street Journal reporter. And, Larry Krasner won election as District Attorney in Philadelphia running on a platform of criminal justice reform and ending mass incarceration. We speak with Krasner about what he’s accomplished in his first 100 days.