Finnpog,
Your argument loses ALL credibility when you spout such nonsense as;
"as the country is a province of the EUSSR, and there is no Special in the Special Relationship anymore."
I think that you'll find that it still is rather special, which is why the UK is the only other Tier One partner and is intimately involved in developing the aircraft and all aspects of it's systems. We were a part of the down select from the XF-32 and XF-35 and a myriad of UK companies have been involved in the design concept from day one.
Source code software is commercial in confidence in extremis on a whole host of industrial projects from lifts, trains, fire protection systems, car engine management systems to all manner of military systems. Add in a state of the art stealth capability that is cutting edge and is it any wonder that Lockheed-Martin are keen to hold onto said source soft ware codes.
I recall a conversation with a VERY senior bod in Lockheed-Martin about ten years ago who made it plain that even the US military didn't have a cat in hells chance of obtaining C-130J source software code from his company.
As someone else alluded to earlier, what do you want the source code for anyway? The F-35 will be depot serviced at 3 locations worldwide and the sensitive bits will only be serviced by LM personnel.