Marine Corps Commandant Gen. Robert Neller today acknowledged there is "risk" in ending the Marine Corps' Assault Amphibious Vehicle survivability upgrade program before the service's new vehicle is integrated into the fleet. Neller said the Marine Corps should invest its money in purchasing the Amphibious Combat Vehicle, which is slated to replace the aging AAV vehicles. "Is there risk? Sure, there's risk," Neller told Inside the Navy . "But I think we felt that with the ACV, the vehicle that...