U.S. Air Force firefighters from Tinker AFB, Okla., break away concrete during a search for survivors in the remains of Plaza Towers Elementary School in Moore, Okla., May 20, 2013, after a devastating tornado touched down in the city. (U.S. Air National Guard photo by Maj. Geoff Legler.)
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usairforce/8783777749/">Oklahoma tornado relief</a>