Behind the dramatic arrest of 16 Marines: "It's a shock to the system"

Two of the country's most famous military units are under intense scrutiny. A human smuggling investigation led to the mass arrest of 16 Marines from the 1st Marine Division Thursday at Camp Pendleton in California. Two other Marines were arrested and charged earlier this month. The accusations range from smuggling illegal immigrants into the country to drug-related offenses. Jamie Yuccas reports.