Will the Turmoil on Wall Street Spread to Main Street?

Financial institutions most Americans don’t even think about are now front and center in the presidential campaign. The country's biggest insurer -- American International Group, or AIG -- is the latest major player whose troubles threaten economic security. At the same time, ATM's are still dispensing cash, credit-card offers arrive in the mail and it's even possible to get a mortgage. We get the latest from Wall Street, hear what John McCain and Barack Obama are saying and learn what's at stake for ordinary Americans.