Lance Cpl. Brenton Blackburn poses for a photo before

Lance Cpl. Brenton Blackburn poses for a photo before being sprayed with oleoresin capsicum, left, and after, right, March 6 on Marine Corps Air Station Futenma, Okinawa. Blackburn and other Marines temporarily assigned to the security augment force for Marine Corps Installations Pacific-Marine Corps Base Camp Butler, Japan, were introduced to the visceral sensation of the irritant to understand its effects and how to operate if they were exposed while spraying an assailant. Blackburn is Cooper City, Fla., native and an airframe mechanic with Marine Medium Tiltrotor Squadron 265, Marine Aircraft Group 36, 1st Marine Aircraft Wing, III Marine Expeditionary Force. (U.S. Marine Corps photo composite by Sgt. Matthew Callahan/Released)