wheresstimpy

Hi, Does anyone know if there is any special concerns i should be aware of if im flying into Chicago Ohare with guns for area 5? My dad and I have had multiple people tell us that we need to be careful, and that Chicago is similar to New York. We called the airline and they referred us to TSA's website. Is there any weird gun laws in Chicago? The last time we flew with firearms was before 9/11 so im a little clueless to how it all works now. Thanks for your help.