Asif Khan: Some pretty big holes in the Marine Corps’s books

The Government Accountability Office finds more problems with the Marine Corps' 2012 financial audit. The Defense Department's Office of Inspector General didn't go through the right procedures or find the right evidence to support a clean financial audit opinion in fiscal 2012. The DoD IG rescinded the clean opinion back in March. Asif Khan is director of financial management and assurance issues at the GAO. He tells In Depth with Francis Rose why he conducted the study, and what tipped him off that the fiscal 2012 audit opinion may not be accurate.