CHICAGO, IL - MAY 20: Chicago Police arrest Getty Images freelance photographer Joshua Lott (2nd L) during the first day of the NATO summit on May 20, 2012 in Chicago, Illinois. Sixty heads of state, 2,500 journalists and thousands of protesters have converged on Chicago for the two day NATO meeting which begins on Sunday and will look to address the situation in Afghanistan among other global defense issues. Chicago police are preparing for the...
more CHICAGO, IL - MAY 20: Chicago Police arrest Getty Images freelance photographer Joshua Lott (2nd L) during the first day of the NATO summit on May 20, 2012 in Chicago, Illinois. Sixty heads of state, 2,500 journalists and thousands of protesters have converged on Chicago for the two day NATO meeting which begins on Sunday and will look to address the situation in Afghanistan among other global defense issues. Chicago police are preparing for the worst with many officers in riot gear and with their numbers enhanced by police from outside the city. (Photo by Joe Compean/Getty Images)
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