Updated: May 21, 2012 at 10:06 AM
NATO protests (19 images)
Police clash with protestors outside of the 2012 NATO Summit at the McCormick Place convention center in Chicago, May 20, 2012. Approximately 20,000 protestors marched on NATO's biannual summit. UPI/Mark Cowan
License photo | Permalink
Protestors confront police outside of the 2012 NATO Summit at the McCormick Place convention center in Chicago, May 20, 2012. Approximately 20,000 protestors marched on NATO's biannual summit. UPI/Mark Cowan
License photo | Permalink
Police clash with protestors outside of the 2012 NATO Summit at the McCormick Place convention center in Chicago, May 20, 2012. Approximately 20,000 protestors marched on NATO's biannual summit. UPI/Mark Cowan
License photo | Permalink
Police arrest a protestor outside of the 2012 NATO Summit at the McCormick Place convention center in Chicago, May 20, 2012. Approximately 20,000 protestors marched on NATO's biannual summit. UPI/Mark Cowan
License photo | Permalink
Advertisement