World News Roundup

On the "CBS News Weekend Roundup," host Allison Keyes gets the latest on fallout from the shutdown at the nation's airports from CBS's Kris Van Cleave. CBS's Nikole Killion on the end of an era as former House Speaker Nancy Pelosi decides not to seek re-election. In the "Kaleidoscope with Allison Keyes" segment, the current state of the battle against lung cancer.