From hurricanes to mass shootings to forest fires, multiple disasters have struck the United States in recent months. Earlier today, hospital systems, local law enforcement and EMS did a mass-casualty training drill in Salt Lake City to test how Utah would fare in a disaster. Peter DeWeerd is helping manage chaos at St. Mark’s Hospital. "Go, go, go!" he shouts as an ambulance pulls up to the emergency entrance. DeWeerd is a physician here. He and a dozen nurses in teal scrubs triage patients dressed like they’re coming from a biohazard scene or a mass shooting. "Shootings. 300 expected. No chemical exposure. Coming from Camp Williams.