Embattled Cook County Assessor Joseph Berrios joins Elizabeth Brackett for a one-on-one interview. View a timeline of his political career.

A new ruling says New York's One World Trade Center will be the nation's tallest building when it is opens next year, swiping the title from Chicago's Willis Tower. Geoffrey Baer has the story.

The FDA proposed a ban Thursday of partially hydrogenated oils that create the byproduct trans fat. Large restaurant chains and manufacturers have been limiting the trans fat content in their products for years, but some question whether a ban is the most effective approach to preventing heart disease. Read an interview.

An increasing number of old churches are for sale in Chicago, but what should buyers do with them? We tell you about the debate over reuse versus demolition. View a slideshow.

Science catches up with science fiction as we talk to Professor John Rogers, the inventor of epidermal electronics -- tiny, bendy computer chips that can be placed on or in the human body to monitor critical health data. Watch web extra videos.

Dignitaries and top chefs come together to celebrate Charlie Trotter. Paris Schutz has the story.

Boarded up homes; distressed neighborhoods -- Chicago is struggling to deal with the fallout of the foreclosure crisis on top of depopulation on the south and west sides. The city is tearing down abandoned properties that are magnets for crime. But what else can be done to reshape troubled areas? We talk with Cook County Commissioner Bridget Gainer, who spearheaded the creation of the Cook County Land Bank, and Marshall Brown, an architect, urban planner and professor at the Illinois Institute of Technology.

We take a look at a documentary that follows five war veterans, and their new mission to heal after combat through fly fishing. Not Yet Begun to Fight airs tonight on WTTW World. We speak with the documentary's Executive Producer, Steve Platcow.

A well-known adult with autism and one of the world’s most prominent speakers on the subject visited Chicago to speak at the Chicago Humanities Festival this past weekend. Temple Grandin is a best-selling author, professor of animal science at Colorado State University, and also has an HBO movie based on her life starring Claire Danes which won seven Emmy Awards. She joins us. Watch a web extra video and read an excerpt from her book.

James “Big Cat” Williams joins Ann Kreiter to discuss the Bears’ loss to the Lions, coach Marc Trestman’s decision to keep an injured Jay Cutler in the game, and how the Bears can regroup in time to face the Ravens. Watch a web extra conversation with Big Cat.

We share what you had to say about Native American sports mascots and more in tonight’s viewer feedback.

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

Joel Weisman and his panel discuss Dominick’s exit from Chicago, and the roughly 5,600 employees about to get pink slips. Many of the Dominick’s stores anchor entire shopping centers. What impact will the vacancies have? And what effect will the gay marriage bill have on the next Republican primaries? Watch the web extra conversation.

Lord of the Flies at Steppenwolf Theatre, a fiber art event at Chicago Botanic Garden, and The Rascals reunite for a concert; Chicago Tonight knows what’s going on this weekend.

Illinois Senators and Mayor Emanuel are demanding the new U.S. Attorney focus on combating Chicago street crime. But will that really help-- and what about political corruption? Paris Schutz and his panel take a look.