by Staff Report Who's in town Journalist Oscar Martinez of El Salvador is using Skype to join a discussion of his acclaimed book "The Beast: Riding the Rails and Dodging Narcos on the Migrant Trail." [7:30 p.m., Green Apple Books on the Park, 1231 Ninth Ave., S.F.] Lectures U.S. food system: New York Times food columnist Mark Bittman discusses shortfalls in America's agricultural system. [6:30 p.m., A…
SOURCE: The San Francisco Examiner at 05:00AM on June 3, 2015