This week on Chicago Tonight: The Week in Review, aldermanic runoff candidates make their final push for City Council, while Rahm Emanuel asks if the number of aldermen should be cut in half. Gas prices soar, with experts wondering if $5 a gallon is just around the corner. The University of Illinois approves another tuition hike. Groupon's president surprises the business community and calls it quits. And in sports, Derrick Rose makes his case for MVP while the Chicago Bulls continue to surge. Guests:

We hear what you had to say about recent stories when we read some of our viewer mail. Send Chicago Tonight your comments

We sit down with the two aldermanic candidates in the 41st ward runoff. Meet Mary O'Connor and Maurita Gavin. Visit our 41st ward page for web-exclusive video

On the first anniversary of the Health Care Reform Act, Elizabeth Brackett talks to the Director of the Illinois Department of Insurance. He explains what parts of the act have gone into effect in Illinois and what's to come. Has health care improved since reforms became law? Join the discussion. Illinois Dept. of Insurance

Smokestacks on the Southwest Side are the source of a burning issue. We discuss why some residents are upset, and find out what the aldermanic candidates are doing about it in our forum for the 25th ward runoff election. Visit our 25th ward page for web-exclusive video

A local group of physicians, who volunteer their time to do free joint replacement surgeries in poor countries around the world, have now brought the program home to Chicago. Elizabeth Brackett reports. Operation Walk Chicago

Col. Muammar Qaddafi's forces keep fighting despite the allies' air attacks against them. Elizabeth Brackett and her panel debate whether this war in Libya is something the U.S. should be a part of. Sound off on this topic on our discussion board

We sit down with the two aldermanic candidates in the 50th ward runoff. Meet Bernard Stone and Debra Silverstein. Visit our 50th ward page for web-exclusive video

We sit down with the two aldermanic candidates in the 24th ward runoff. Meet Sharon Dixon and Michael Chandler. Visit our 24th ward page for web-exclusive video

The second trial of Rod Blagojevich will proceed as planned. At least that's the indication given by Judge James Zagel after defense attorneys asked that the trial be canceled and the ex-governor sentenced on his one conviction. Eddie Arruza reports on what Judge Zagel said at a status hearing today.

We sit down with the two aldermanic candidates in the 20th ward runoff. Meet Willie Cochran and Che "Rhymefest" Smith. See the 20th ward candidates in web-exclusive video

We sit down with the two aldermanic candidates in the 17th ward runoff. Meet Latasha Thomas and David Moore. See the 17th ward candidates in web-exclusive video

Nearly every Friday morning for four and a half years, two Chicago nuns have led a vigil at the place where undocumented immigrants are processed before being deported. Jay Shefsky brings us their story. Broadview Detention Center Vigil

People across the world wait anxiously for the next development in the Fukushima nuclear power plant meltdown scare. What is the nuclear energy situation here, and should we be afraid of radiation too? We talk with nuclear and radiation experts on the show. More on the Story: Local doctor on effects of radiation exposure

He brought down his homicidal mobster father with a letter to the FBI. Now, Frank Calabrese, Jr. has written a book detailing the rise and fall of the Calabrese Chicago crime family. Operation Family Secrets Sound off on our discussion board

We sit down with the two aldermanic candidates in the 16th ward runoff. Meet JoAnn Thompson and Hal Baskin. 16th ward page with web-exclusive video