AP Air Force missile launch crew fell asleep - with the codes

WASHINGTON - Three ballistic missile crew members in North Dakota fell asleep while holding classified launch code devices this month, triggering an investigation by military and National Security Agency experts, the Air Force said Thursday.

The probe found that the missile launch codes were outdated and remained secure at all times. But the July 12 incident comes on the heels of a series of missteps by the Air Force that had already put the service under intense scrutiny.