CITY OF DAVID - Lesley Stahl reports from under the city of Jerusalem from a controversial archeological dig that has become a flashpoint in the Israeli-Palestinian conflict. Shachar Bar-On is the producer.STAND DOWN - Some veterans returning from Iraq or Afghanistan into the recession are finding themselves homeless. Scott Pelley reports on an annual encampment in San Diego where veterans can find hope, help and services. Henry Schuster is the producer.MARKET STREET - Morley Safer reports on a mystery that was solved about a 100-year-old film that we now know was made on San Francisco's Market Street just days before the 1906 earthquake. David Browning is the producer.