Commuters board a Metra train for Chicago at Union Station Wednesday, May 16, 2012, in Joliet. Riders may only carry one bag not exceeding 15 inches square and 4 inches deep and liquids in personal effects must be less than 3 ounces from May 19 through May 21. | Matthew Grotto~Sun-Times Media
Commuters wait to board a Metra train for Chicago at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuters board a Metra train for Chicago at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
A commuter walks past a Metra train at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter Terry Broderick of Joliet is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter Dave Wilson of Joliet is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter Hope Grace of Joliet is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter Ambar Campos of Joliet is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter John Meitz of Minooka is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
Commuter Krzysztof Niechcial is seen at Union Station Wednesday, May 16, 2012, in Joliet. | Matthew Grotto~Sun-Times Media
JOLIET — Commuters hopping trains bound for Chicago at Union Station on Wednesday were bracing themselves for a city filled with protesters and police. The upcoming NATO Summit on Sunday and Monday is expected to wreak havoc downtown this week as protesters use the international …
