News Analysis with Carol Marin
The Vatican caused controversy Tuesday when it released a document that sought to clarify the Roman Catholic Church as "the one true church." Carol Marin and her panel take a closer look at papal language. Guests: Rev. Thomas Baima, William Schweiker, Rev. Donald Senior

Merc/Board of Trade Merger
The Chicago Board of Trade and the Chicago Mercantile Exchange are joining forces. What does this mean for the city, and why should you care? We'll ask the chairman and vice chairman of the newly merged exchange giant. Guests: Terry Duffy, Charles Carey

Flooding
We'll learn more about the recent flooding in Chicago and what homeowners can do to lessen the risk in the future.

• Learn more about rain barrels

Return of Purple Martins
Volunteers from the Bill Jarvis Bird Sanctuary are delighted to find that their hard work of keeping bird houses open for Purple Martins has resulted in a bumper crop of baby birds. Elizabeth Brackett has the story.

Artbeat
A new exhibit at the Art Institute of Chicago features photographs lit from the inside out. We'll introduce you to Jeff Wall, the artist behind this luminous show.

Live Music Wednesday
We'll have a sneak preview of this weekend's 10th Annual Folk & Roots Festival, including a live performance from local guitar great Dave Specter.