Members of National Nurses United rally in Daley Plaza on Friday, ahead of the NATO Summit in Chicago, Friday, May 18, 2012. Thousands of nurses and other protesters gathered at the downtown Chicago ... more 
Members of National Nurses United rally in Daley Plaza on Friday, ahead of the NATO Summit in Chicago, Friday, May 18, 2012. Thousands of nurses and other protesters gathered at the downtown Chicago plaza for a noisy but largely peaceful demonstration demanding a "Robin Hood" tax on banks' financial transactions, before a smaller but more raucous crowd broke away and began marching through city streets. (AP Photo/Nam Y. Huh) less 
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Associated Press | Photo By Nam Y. Huh
Fri, May 18, 2012 7:19 PM EDT