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The U.S. Drum and Bugle Corps perform at the start of the Welcome Discovery Ceremony at the Udvar-Hazy Air and Space Center on April 19, 2012. 
   Mike Lynaugh

The U.S. Drum and Bugle Corps perform at the start of the Welcome Discovery Ceremony at the Udvar-Hazy Air and Space Center on April 19, 2012. 

Mike Lynaugh