Iranian Government May Be Behind Recent Cyber Attacks

Over the last several months, U.S. banks have been subjected to a series of cyber attacks apparently aimed at disrupting normal operations. A volunteer cyber militia group has taken credit for the attacks, saying they are to protest the anti-Islam video that has angered the Muslim world. But U.S. officials and cybersecurity experts are increasingly convinced the government of Iran is behind the attacks. Tom Gjelten talks to Melissa Block.