WESTERN SPRINGS, Ill. - Four Chicago suburbs have been ranked among the top 30 safest and wealthiest cities in the nation.

With several inches of snow expected to come to the Chicago area, a Chicago doctor has advice on the best ways to stay safe while shoveling.

Thus, communities across the Chicago area that have become safe havens for undocumented immigrants are now bracing themselves for what will be a very unpredictable next few days — if not weeks.

The I-Team got an exclusive behind-the-scenes tour of the largest conventional water treatment plant in the world, the Jardine Water Purification Plant near Navy Pier.