Journalists armed with pens, paper, cameras and even helmets flocked to Chicago in May to cover the NATO summit, where President Barack Obama met with world leaders.
Among the masses outside McCormick Place were reporters whose main purpose there was not to cover the summit, but to use the event as a practice run for covering the upcoming political party conventions. Police officers from the convention cities of Tampa, Fla., and Charlotte, N.C., also traveled to Chicago to learn how to handle a high-profile event.