South Shore has made a number of schedule changes for Sunday and Monday – the 20th and 21st of May.
Representatives from 28 countries are in Chicago for the NATO Summit. That means heightened security already, and big changes to South Shore service.
Anyone traveling will see rigorous security checks, and that's expected to cause significant delays.
Monday, 11 trains going to and from Millenium Station are cancelled. So be sure to check the schedule changes before heading out to Chicago: http://www.nictd.com/nato.html