ARLINGTON, VA - MAY 29: Thousands of motorcycle enthusiasts and military veterans mix in the Pentagon's parking lot before the start of "Rolling Thunder" rally May 29, 2011 in Arlington, Virginia. ... more 
ARLINGTON, VA - MAY 29: Thousands of motorcycle enthusiasts and military veterans mix in the Pentagon's parking lot before the start of "Rolling Thunder" rally May 29, 2011 in Arlington, Virginia. Although not an official guest, former U.S. Vice presidential candidate and Alaska governor Sarah Palin is expected to participate in today's motorcycle parade from the Pentagon to the National Mall. (Photo by Chip Somodevilla/Getty Images) less 
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Getty Images | Photo By Chip Somodevilla / Getty Images
Sun, May 29, 2011 1:26 PM EDT