First responders check out a FrontRunner train during "Hell on Wheels," a full-scale, two-day, emergency protection and response drill at the Salt Lake Central Station on Tuesday, Aug. 8, 2017. The drill included emergency personnel from the Utah Transit Authority, the FBI, Salt Lake County Emergency Management, the West Valley and Salt Lake City fire departments, University of Utah Emergency Management, the University of Utah Police Department, Amtrak, Union Pacific, Murray Victim Advocates and Utah State Medical Examiner's Office. The drill simulated multiple terrorists entering the Salt Lake Valley and dividing up.