Cpl. Matthew Riedel, unmanned aerial vehicle operator, Unmanned Aerial Vehicle Squadron 1, speaks with Ryan Biggs, 6, and Richard Biggs, 6, first graders at Joshua Tree Elementary, prior to beginning a race with them and other students at Joshua Tree Elementary during an adopt-a-school visit Dec. 4, 2013. - Cpl. Matthew Riedel, unmanned aerial vehicle operator, Unmanned Aerial Vehicle Squadron 1, speaks with Ryan Biggs, 6, and Richard Biggs, 6, first graders at Joshua Tree Elementary, prior to beginning a race with them and other students at Joshua Tree Elementary during an adopt-a-school visit Dec. 4, 2013.