Negotiations between the United States and Turkey over Turkish plans to procure some 100 F-35 strike fighters have stalled because the United States refuses to share the source code for the aircraft’s software, reports UPI. Possessing the source code would make it possible for Turkish engineers to make changes to the aircraft’s software to enable country-specific aircraft modifications. Turkish Defense Minister Vecdi Gonul reportedly told a Turkish newspaper earlier this month that the talks to date had not yielded “satisfactory results” to enable the $16 billion deal to proceed, according to UPI. Earlier this year, Gonul said Turkey might up its F-35 buy to 116.
A new report from the Government Accountability Office calls for the Pentagon’s Chief Technology Officer to have budget certification authority over the military services’ research and development accounts—a move the services say would add a burdensome and unnecessary layer of bureaucracy.

