Chicago Humanities announced its full fall festival schedule, featuring standalone programs and festival days in select neighborhoods, the festival announced Tuesday. The festival runs from September through November.

In 1976, a 37-year-old suburban French teacher led an eight-month trek retracing the 17th century expedition of French explorer Robert de La Salle. Hear about the trip from two who experienced it, including the teacher who led the exhibition, and the author of a new book about the trip.

Chicago-based business writer Bethany McLean makes the case that mortgage giants Fannie Mae and Freddie Mac are in a precarious state in her new book, "Shaky Ground: The Strange Saga of the U.S. Mortgage Giants." She'll explain what failure could mean for American mortgage holders when she joins us Monday on "Chicago Tonight."