Motorcyclists gather in the Pentagon parking lot for Rolling Thunder on Sunday, May 27, 2012. Hundreds of thousands of bikers participated in this year's ride, the 25th anniversary of the event. (Barbara L. Salisbury/The Washington Times)

Photo by: BARBARA L. SALISBURY

Motorcyclists gather in the Pentagon parking lot for Rolling Thunder on Sunday, May 27, 2012. Hundreds of thousands of bikers participated in this year's ride, the 25th anniversary of the event. (Barbara L. Salisbury/The Washington Times)