NTSB Overload NPR's Mary Ann Akers reports that the National Transportation Safety Board has a backlog of accident cases to investigate. Experts say the reasons range from complex aviation technology to the involvement of lawyers and law enforcement.

NTSB Overload

NTSB Overload

Audio will be available later today.

NPR's Mary Ann Akers reports that the National Transportation Safety Board has a backlog of accident cases to investigate. Experts say the reasons range from complex aviation technology to the involvement of lawyers and law enforcement.