Transit: If the U.S. Congress fails to pass a transportation funding bill by the weekend, transit authorities warn systems like the CTA will take a nosedive. Chicago Tribune transportation reporter Jon Hilkevitch looks at the implications.

Guilty pleasures: A recent Northwestern University study shows that, despite common belief, guilty pleasure may be more, well, pleasurable than we think. Eight Forty-Eight talks with Maryanne Fisher of St. Mary’s University and consumer psychologist Peter McGraw about the science, and how guilty pleasures shape our lives, our culture and our world. To join the conversation, call 312.923.9239.

Chicago neighborhoods: There are 77 official neighborhoods in Chicago. According to WBEZ history blogger John Schmidt, the city’s “Community Areas” have undergone few changes over the years, unlike political boundaries. He stops by to explain.

Treasure Fleet: Two members of The Treasure Fleet, a Chicago supergroup of sorts, perform an acoustic set live in-studio.