Rolling Thunder memorial in DC
Rolling Thunder tribute
Credit: Getty Images
WASHINGTON, DC - MAY 25: U.S. military veterans salute as Taps is played during a wreath-laying ceremony at the Congressional Cemetery May 25, 2012 in Washington, DC. The ceremony is part of weekend events marking the 25th anniversary of the Rolling Thunder Ride for Freedom, a motorcycle rally in the nation's capital. Started in 1988 as a protest to bring more awarness to issues about POW/MIA, Rolling Thunder now has 90 chapters across the United States and expects more than 900,000 veterans and their supporters to participate in the ride. (Photo by Chip Somodevilla/Getty Images)
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