the olympic is an event open for every country of the worlds. so when the country or a city has the ability to celebrate the olympics, they have to get ready everything like sports, clean city, security, enough hotels for people to come over and visit. also, the olympics bring to a city riches and popularity. it makes everyone in the world know about that and interested people come to visit the city. and also the olympics give the country developement with the attention of everybody. so i think Chicago would make a good olympic host city.