WASHINGTON, May 27, 2007 – A chrome convoy of about 300,000 motorcycles driven by Vietnam veterans and their supporters blazed across the nation’s capital today in a deafening roar of solidarity. Spectators watch and show their support as motorcycle riders rumble by near the National Mall in Washington, D.C., during the 20th Rolling Thunder Ride for Freedom, May 27, 2007. The bikers ride to raise awareness about prisoners of war, troops missing in action and veterans’ benefits. Defense Dept. photo by John J. Kruzel (Click photo for screen-resolution image);high-resolution image available. On the 20th anniversary of Rolling Thunder Ride for...