Fifteen area fire departments, police departments, ambulance services and other first response teams participated in a disaster simulation at the Hector International Airport in Fargo this morning. Airport Fire Chief David Bush says dozens of volunteers were on hand to play the parts of victims of an airplane crash. He says they are asked to “really be pains in the butt” to make the scene as chaotic – and realistic – as possible. "The simulation is going to be that there was a collision between Citation-500 and a CRJ-900 aircraft. And they were just on the ramp, waiting to taxi, and the Citation ran into this commercial aircraft."