On November 4, 2016, NASA, FEMA, the Department of Energy, Jet Propulsion Laboratory (JPL), U.S. Air Force, and the California Governor's Office of Emergency Services collaborated in a planning exercise simulating a destructive asteroid impact set for September 20, 2020. The exercise planners envisaged that the asteroid, up to 800 feet (250 meters) in size, would hit somewhere along a narrow band across Southern California or just off the Pacific Coast....    This is an audio version of an article published on Exopolitics.org on August 31, 2020, and is narrated by the author Michael Salla, Ph.D.