Riding the CTA during the NATO summit next weekend certainly will be easier than riding the Metra, but it still will be no picnic.
The good news is there are no tough restrictions such as there are on the Metra, and there will be no Loop "L" renewal work.
The bad news is there will be reroutes and schedule changes for at least 26 bus routes that touch the area near the Loop and south Loop where many of the NATO activities take place. Check the CTA's special Web page for details.
Your best bet is to use the CTA rail lines if at all possible. Check the CTA's system status and alerts page for the most up-to-date info.
I wrote earlier about the goofy Metra restrictions, such as no backpacks, drinks and food. Now, I understand that on the lines that go near McCormick Place, where NATO delegates will meet. But if you're going from Evanston to Kenosha, it really doesn't make a lot of sense.