A protester taunts police dressed in riot gear during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester yells at a Chicago police sergeant during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester holds his bleeding head during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. Chicago Police later said the man had used fake blood. | John J. Kim~Sun-Times

Police and protesters scuffle during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester is hit with a police shield during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester is hit with a police shield during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police Supt. Garry McCarth (top ceneter) watches over his police force during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester is detained during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A police officer holds a baton with the words "BIG RED" etched into the wood during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester yells at police during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters are pushed to the ground during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Photographers and protesters are pushed westward during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A military veteran throws away the medals he received as a soldier during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A military veteran rips the ribbons and medals off his uniform during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester walks away with a bloody eye during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A protester prays during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police Supt. Garry McCarthy, right, watches a ceremony take place during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters lock arms during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Rev. Jess Jackson, right, playfully covers the camera lens of a photographer during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Protester with blood streaming down his face. Mitch Dudek~Chicago Sun-Times

Protesters' medic tend to wounded in an alley on Cermak west of Michigan. | Jon Seidel Sun-Times photo

Injured protester. Mark Konkol~Chicago Sun~Times

This guy was at front when cops started pushing people back and hit him in face with baton breaking his 4 front teeth. | Pavel Pourmal ~ Sun-Times

An arrested woman asks a reporter,"help me". Mark Konkol~Chicago Sun-Times

Jason Crumbly, 27, arrested by Chicago Police. Mark Konkol~Chicago Sun-Times

Arrested protester. Mark Konkol~Chicago Sun-Times

Chicago Police and protesters clash at Michigan Avenue and Cermak. NBC5

Protesters make their way south on Michigan Avenue on Sunday, May 210,2012. John J. Kim~Chicago Sun-Times

Iraq Veterans Against the War and Chicago Against NATO and the G8 begin to gath at the Petrillo Music Shell. | Al Podgorski~Sun-Times

Iraq Veterans Against the War and Chicago Against NATO and the G8 begin to gath at the Petrillo Music Shell. | Al Podgorski~Sun-Times

Iraq Veterans Against the War and Chicago Against NATO and the G8 begin to gath at the Petrillo Music Shell. | Al Podgorski~Sun-Times

Iraq Veterans Against the War and Chicago Against NATO and the G8 begin to gath at the Petrillo Music Shell. | Al Podgorski~Sun-Times

Iraq Veterans Against the War and Chicago Against NATO and the G8 begin to gath at the Petrillo Music Shell. | Al Podgorski~Sun-Times

Occupy protesters apply makeup near the Petrillo band shell in Grant park before the start of Sunday's rally. | Al Podgorski~Sun-Times

Occupy protesters apply makeup near the Petrillo band shell in Grant park before the start of Sunday's rally. | Al Podgorski~Sun-Times

An Occupy protester in Grant park before the start of Sunday's rally. | Al Podgorski~Sun-Times

Rev Jesse Jackson talks to young journalists in Grant Park before the start of activities there. | Al Podgorski~Sun-Times

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Members of the Occupy movement prepare for the day at the convergance center on Wellington on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement prepare for the day at the convergance center on Wellington on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Tom Morello, third from right, gets ready to go onstage at the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement gather and prepare for the day at the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement gather and prepare for the day at the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement gather and prepare for the day at the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Occupy Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Occupy Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Occupy Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Occupy Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Occupy Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Activist Tom Morello performs near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Activist Tom Morello (center, in hat and sunglasses) performs near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Black Bloc protesters perpare for the start of activities in Grant Park. They tried to prevent themselves from being photographed. |Al Podgorski~Sun-Times

Black Bloc protesters perpare for the start of activities in Grant Park. They tried to prevent themselves from being photographed. |Al Podgorski~Sun-Times

Black Bloc protesters perpare for the start of activities in Grant Park. They tried to prevent themselves from being photographed. | Al Podgorski~Sun-Times

The crowd takes form near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Protesters perpare for the start of activities in Grant Park. |Al Podgorski~Sun-Times

Protesters perpare climed trees to wait for the start of activities in Grant Park. |Al Podgorski~Sun-Times

Cops guard Jackson at Columbus as protesters march. | Tina Sfondeles ~ Sun-Times

Protesters participate in the rally at Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Protesters pack the street as they prepare to march. | Tina Sfondeles ~ Sun-Times

Protesters rally at Grant Park Sunday, May 20, 2012. | Natasha Korecki ~ Sun-Times

Protesters prepare to begin march to the NATO Summit Sunday, May 20, 2012. | David Roeder ~ Sun-Times

Clowns and cops march to the NATO Summit. | Natashia Korecki ~ Sun-Times

Police Supt. Garry McCarthy walks down Michigan Avenue with the protesters. | Jon Seidel ~ Sun-Times

82-year-old Cynthia Banas braved heat and marched with a cane. | Natasha Korecki ~ Sun-Times

Protesters thankful for generosity during march to NATO Summit. | Natasha Korecki ~ Sun-Times

Rev Jesse Jackson talks to young journalists in Grant Park before the start of activities there. | Al Podgorski~Sun-Times

Members of the Occupy movement march from the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement march from the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement march from the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Members of the Occupy movement march from the Petrillo Band Shell on Sunday, May 20, 2012. | Brian Powers~Sun-Times Media

Occupy Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Al Podgorski~Sun-Times

Black Bloc protesters perpare for the start of activities in Grant Park. They tried to prevent themselves from being photographed. |Al Podgorski~Sun-Times

Protesters prepare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Protesters perpare for the start of activities near the Petrillo band shell in Grant Park. | Brian Powers~Sun-Times Media

Cops guard Jackson at Columbus as protesters march. | Tina Sfondeles ~ Sun-Times

Protesters make their way south on Michigan Avenue Sunday, May 20, 2012. Dan Luedert~Sun-Times Media

Marchers make their way south on the 700 block of south Michigan ave near the Hilton & Towers Sunday afternoon. Rich Hein~Sun-Times

Marchers make their way south on the 700 block of south Michigan ave near the Hilton & Towers Sunday afternoon. Rich Hein~Sun-Times

Marchers make their way south on the 700 block of south Michigan ave near the Hilton & Towers Sunday afternoon. Rich Hein~Sun-Times

Marchers make their way south on the 700 block of south Michigan ave near the Hilton & Towers Sunday afternoon. Rich Hein~Sun-Times

Marchers make their way south on the 700 block of south Michigan ave near the Hilton & Towers Sunday afternoon. Rich Hein~Sun-Times

Attendees wait for Tom Morello to take the stage before the start of the NATO march at Grant Park May 20. | Curtis Lehmkuhl~Sun Times Media

Iraq Veterans Against the War stand at attention before the start of the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Tom Morello, guitarist for Rage Against the Machine, speaks to media before beginning an acoustic set in Grant Park before the start of the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Attendees show their support during Tom Morello's acoustic performance in Grant Park May 20. | Curtis Lehmkuhl~Sun Times Media

Marchers gather for the Anti-NATO march May 20 in downtown Chicago. | Curtis Lehmkuhl~Sun Times Media

Chicago Police line up before the start of the Anti-NATO march along Jackson Drive May 20. | Curtis Lehmkuhl~Sun Times Media

The Anti-NATO march begins its way down Jackson Ave. in Chicago May 20. | Curtis Lehmkuhl~Sun Times Media

The Anti-NATO march begins its way down Jackson Ave. in Chicago May 20. | Curtis Lehmkuhl~Sun Times Media

Marchers scream out chants during the Anti-NATO march in Chicago May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors make their way down Michigan Ave. during the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors make their way down Michigan Ave. during the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors in Guy Fawkes masks pose for pictures before the start of the NATO march beginning at Grant Park May 20. | Curtis Lehmkuhl~Sun Times Media

Marchers make their way south on Michigan Ave. during the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors begin to arrive at Grant Park before the start of the Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

A protestor supporting Code Pink begins the NATO march along Columbus Drive May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors begin a drum circle before the NATO march in Grant Park May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors begin their chants at the start of the Anti-NATO march along Jackson Drive May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors begin their Anti-NATO march through the streets of downtown Chicago May 20. | Curtis Lehmkuhl~Sun Times Media

Protestors march through downtown on their Anti-NATO march May 20. | Curtis Lehmkuhl~Sun Times Media

Marchers fly flags along the Anti-NATO march route in downtown Chicago May 20. | Curtis Lehmkuhl~Sun Times Media

Demonstrators Protest The NATO Summit In Chicago

Lines of police officers move south on S. Michigan Ave. during an anti-NATO march Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Reporters, photographers and police watch the action from the rooftop of a pizzeria during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Workers from a fast food restaurant watch an anti-NATO march move south on S. Michigan Ave. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A woman wearing in-line skates takes pictuers during an anti-NATO march south on S. Michigan Ave. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters are pushed westward during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Protesters have a moment of silence during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

A medal thrown away by a veteran lies on the ground during an anti-NATO rally at S. Michigan Ave. and Cermak Rd. Sunday, May 20, 2012, in Chicago. | John J. Kim~Sun-Times

Chicago Police officers relax after the confrontation with NATO protesters at Michigan and Cermak on Sunday. | Pavel Poural~Sun-Times