Air Force Staff Sgt. Jennifer Evans, survey team chief with the Arkansas National Guard's 61st Civil Support Team, monitors crowds entering Churchill Downs with an identiFINDER during the 141st Kentucky Derby in Louisville, Ky., May 2, 2015. The identiFINDER was used by members of the Joint Emergency Services Unit to detect and identify potentially hazardous radioactive isotopes. (Photo by: Staff Sgt. David Bolton, Public Affairs Specialist, 133rd Mobile Public Affairs Detachment, Kentucky Army National Guard)

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Size: 1289px × 1940px
Photo credit: © RP Photo / Alamy / Afripics
License: Licensed
Model Released: No

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