A girl watches a line of police officers pass by during an Occupy Chicago march through the Loop Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Two protesters take a rest on the ground at the intersection of Halsted St. and Cermak Rd. during the Occupy Chicago march Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Two protesters were arrested at Balbo & Wabash after an altercation with police. The woman was carried to a waiting police van Saturday, May 19, 2012. | Rich Hein-Sun-Times

A television reporter prepares to tape a segment with Occupy Chicago protesters in the background at Daley Plaza Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Mounted Chicago Police keep an eye on protesters as they march south on Michigan Avenue during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A duo raps amid the protesters downtown. | David Roeder ~ Sun-Times

Police question a protester during a march in the South Loop on Saturday, May 19, 2012. | Maureen O'Donnell~Sun-Times

Scott Totzke, 20, of Schaumburg, joins protesters on Michigan Avenue. He said he is making a short film that retraces Ferris Bueller's steps from the movie "Ferris Bueller's Day Off." | Maureen O'Donnell~Sun-Times

A man marching on Michigan Avenue said he created a superhero alterego to protect protesters: Spirit Guardian. He did not reveal his true identity. | Maureen O'Donnell~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

Prostesters march in the South Loop on Saturday, May 19, 2012. | Maureen O'Donnell~Sun-Times

Protesters run into Chicago police at Michigan Ave. and Congress Saturday, May 19, 2012. | David Roeder ~ Sun-Times

Chicago police officers and protesters interact at Lasalle and Jackson. | John J. Kim ~ Sun-Times

Protesters march in the South Loop on Saturday, May 19, 2012. | Maureen O'Donnell~Sun-Times

Protesters gathering at Irving Park CTA L station. | Jon Sall ~ Sun-Times

A protester and a Police Officer look at an iPad while leading a group of protesters around the loop. They are against the NATO Summit. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

A group of protesters walk around the loop against the NATO Summit, under the watchful eyes of the Chicago Police. Saturday, May 19, 2012. | Brian Jackson~Sun-Times

Occupy movement protestors march north on Lasalle Street to protest the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Occupy movement protestors march north on Lasalle Street to protest the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Stephanie Weiner (right), of Chicago, speaks to the crowd about the FBI and law enforcements treatment of her and her family as the protest march stops at Daley Plaza during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

A protestor moves to get out of the way of the mounte police horse after stopping to pickup something he dropped on Michigan Avenue during a protest march in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Nato Summit protesters along Michigan Ave. outside the Chicago Hilton, 720 S. Michigan, Saturday May 19, 2012. | Rich Hein~Sun-Times

Two protesters were arrested at Balbo & Wabash after an altercation with police. The woman was carried to a waiting police van Saturday, May 19, 2012. | Rich Hein-Sun-Times

Nato Summit protesters along Michigan Ave. outside the Chicago Hilton, 720 S. Michigan, Saturday May 19, 2012. | Natasha Korecki~Sun-Times

Chicago Police on bicycles line the center of Michigan Avenue to contain a proetst march during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

A protestor sits on Congress Avenue and offers a flower to police during a protest march for the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Police form a human barricade where a protestor was arrested at 18th Street during a protest march in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

People and Police help a man who went in to convulsions during a protest march on Michigan Avenue during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

A Chicago Police officer tries to keep people from using the side walk to get around their protective line during a protest march in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Omaha Occupy members Aaron Urbanski, 23, and Jenny Gowen, 22, both of Omaha, Nebraska, hug as protestors gather at Lasalle and Jackson under the watchful eye of the Chicago Police for a march to protest the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Protestors march north on Lasalle Street during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Chicago Police look on at two men dressed as founding fathers as protestors gather at Lasalle and Jackson for a march to protest the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Protestors rush past a homeless man as they use the sidewalk to get around police in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Chicago Police mount their bicycles to keep up with protest marchers on Michigan Avenue during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Protestors chant as they pass the Chicago Theater in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Mounted Chicago Police keep an eye on protesters as they march south on Michigan Avenue during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Police boats patrol the Chicago River at Wolf Point Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters walk through car traffic on W. Lake St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police keep an eye on protesters as they march south on Michigan Avenue during the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Occupy Chicago protesters are blocked by a police barricade on S. Michigan Ave. during a march Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Occupy Chicago protesters march north on N. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters cover their faces with kerchiefs during a march on W. Fulton St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A protester runs to catch up with fellow protesters on S. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters walk through car traffic on S. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Waitresses at a restaurant photograph march protesters on N. Jefferson St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters carrying a sign approach the intersection of S, LaSalle St. and Jackson Blvd. to begin a march Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police Supt. Garry McCarthy, right, patrols on foot during a protest march on W, Lake St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police Supt. Garry McCarthy, center, patrols on foot during a protest march on S. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A man sits on the ground at S. State St. in front of police officers during a protest march through the Loop Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police Supt. Garry McCarthy (right, sunglasses) walks past his rank and file during a protest march on S. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A motorist stuck in traffic takes pictures of a protest march on N. Michigan Ave. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Police officers stand at Congress Expressway and S. Michigan Ave. during a protest march Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A skirmish ensues between Occupy Chicago protesters and a barricade of police officers on S. State St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A woman carries her child past police officers during an Occupy Chicago rally at Daley Plaza Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Spectators photograph Occupy Chicago protesters marching through the Loop Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

Occupy Chicago protesters yell a chant while marching south on S. Michigan Ave. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times

A protestor named Sparky, from Buffalo, holds a sign while waiting for a protest march to start at the Chicago Board of Trade on Lasalle Street in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Occupy movement protestors march north on Lasalle Street to protest the NATO Summit in Chicago, Illinois, Saturday, May 19, 2012. | Joseph P. Meier~Sun-Times Media

Police and Nato Summit protesters interact at LaSalle and Jackson Saturday, May 19, 2012. | John Kim~Sun-Times

Police stopped the crowd from proceeding North on Michigan ave. from Balbo but let them continue through after several minutes Saturday, May 19, 2012. | Rich Hein-Sun-Times

Police stopped the crowd from proceeding North on Michigan ave. from Balbo but let them continue through after several minutes Saturday, May 19, 2012. | Rich Hein-Sun-Times

Protesters take to the Downtown Chicago streets halting traffic along Clinton. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police escort a protester from entering Clinton street. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

A Chicago Police Sargent with a yellow face on his riot helmet. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police arrest a protester after entering the State Street Subway Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police arrest protesters after entering the State Street Subway Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police arrest a protester after entering the State Street Subway Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police stand along Michigan Avenue as protesters are corralled around Congress Plaza at Michigan Avenue. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police stand along Michigan Avenue as protesters are corralled around Congress Plaza at Michigan Avenue. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

A Protester shouts while jumping into the air along Clinton street. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Protesters head up Michigan Avenue after being corralled by Chicago Police at Congress Plaza late Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police block Clinton Street as protesters block the intersection. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

A unidentified Protester walks with a medical Urinary foley bag along the protest route. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Protesters march up Randolph Street while taking over the Downtown Chicago streets. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Protesters halt traffic along Dearborn Street while taking over the Downtown Chicago streets. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police Block Clinton Street to stop the Protesters from entering the dead end street. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Chicago Police argue with a protester from entering Clinton street. Saturday, May 18, 2012 | Scott Stewart ~Sun-Times

Occupy Chicago protesters march south on S. Halsted St. Saturday, May 19, 2012, in Chicago. | John J. Kim~Sun-Times