[Pittsburgh, September 24. Image via Getty]

PITTSBURGH - SEPTEMBER 24: A group of Free Tibet protesters march through the streets near the site of the G-20 Summit on September 24, 2009 in downtown Pittsburgh, Pennsylvania. World leaders will discuss promoting global economic growth as they gather for the two-day G-20 summit at Pittsburgh's convention center on September 24-25. (Photo by Jeff Swensen/Getty Images)