Israeli singer-songwriter David Broza joins us with a conversation and performance. Watch web extra performances.

The polar vortex made its unwelcome return today, causing delays and closings. Will tomorrow be a repeat? Paris Schutz has the story. Send us your severe weather photos here and we'll use them in our online slideshow.

WGN's Chief Meteorologist Tom Skilling talks about the city’s record low temperatures, and what we can expect over the next few days.

We break down the rules Illinois has outlined for medical marijuana, and some additional restrictions Mayor Rahm Emanuel and Ald. Ed Burke would like to impose in Chicago.

The Chicago Department of Public Health is ramping up its campaign to increase teenage HPV vaccination coverage. We talk vaccinations and disease prevention with the agency’s medical director, Dr. Julie Morita. Read an interview and view graphics on HPV.

Illinois is one of 25 states that have chosen to expand Medicaid under the Affordable Care Act. We head to DuPage County to check up on the massive changes taking place in the state's health care system.

We talk with Chicago comic Pat McGann fresh off his first appearance on the Late Show with David Letterman. Watch his performance.

We share what you had to say about pension reform and Cook County boot camp labor in tonight's viewer feedback.

It turns out pension reform could save $15 billion less than legislative leaders initially anticipated. An actuarial analysis done by the pension systems affected by this bill say the real savings will be $145 billion, rather than the $160 billion originally advertised. Read an article.

Joel Weisman and his panel of journalists discuss the week's top headlines.

The panelists turn the tables and ask Joel Weisman a few questions about his favorite memories of hosting The Week in Review for the past 36 years. Watch the web extra video.

A scavenger hunt, restaurant tour and winter activities; Chicago Tonight knows what’s going on this weekend.

The Chicago School Board approved seven new charter schools for the city. Where are they located in comparison with the neighborhood schools that were closed down? View a map of charter vs. neighborhood schools.

With only $40 and forged paperwork, crooks are stealing houses from unsuspecting homeowners. It’s real -- and a felony. Last week, the Cook County Board of Commissioners unanimously passed an ordinance cracking down on the "Clouding A Title" scammers, adding steep fines to jail sentences. City Treasurer Stephanie Neely and Cook County Recorder of Deeds Karen Yarbrough join us with tips on how to protect yourself from strangers changing your locks and moving in.

Cook County Sheriff Tom Dart plans to eradicate abandoned and blighted homes throughout the county, using county boot camp labor. What community is he starting with? Brandis Friedman has the story. Read an article and view a slideshow.