Photos: Choppers, casualties... and Tasers

Oregon Army National Guard Soldiers simulate the evacuation of a casualty at the Eugene Airport, May 2, during Exercise Vigilant Guard. The event, designed to test interoperability between first responders, National Guard personnel and U.S. Northern Command (USNORTHCOM), is being conducted at various locations throughout the state, May 1-6. (U.S. Army photo by Spc. Cory Grogan, Oregon Military Department Public Affairs).