I don't know but I don't think nukes will be used close to the Great Lakes. I also don't think they are going to want to destroy land by making everything radioactive. Chicago could be bombed but I don't think nukes will be used.

However, if I'm wrong and Chicago is nuked I doubt that Detroit would be safe because the air and water would be contaminated. You wouldn't experience damage, but what difference would it make if you can't breathe or drink water or bathe, etc.? If it's just a "dirty bomb", then I don't think it would be as catastrophic.