A protestor in a Guy Fawkes mask walks past a police officer during a demonstration ahead of the NATO...
A protestor in a Guy Fawkes mask walks past a police officer during a demonstration ahead of the NATO meeting in Chicago, May 18, 2012. Leaders from members of the NATO alliance are expected to discuss the worsening situation in Afghanistan, and protest organizers said they hope thousands of people will turn out to demonstrate against the war and other issues such as income inequality. REUTERS/Jim Young (UNITED STATES - Tags: POLITICS BUSINESS)