The Air Force took so long to design, develop, build and deploy its fighter that not only did it run out of enemies, but a newer fighter, the F-35, is now being produced which, according to its prime contractor, Lockeed Martin "will be the most formidable strike fighter ever fielded."
Lockheed says "Deliveries to the armed services are scheduled to begin in 2010 and continue well beyond 2030."
One of the things the Air Force did to share the cost of development was to invite 10 other countries into the deal. Unlike the F-22 - which outlived the enemy it was designed to defeat; the F-35 is inviting its potential enemies to participate in producing the plane they can potentially use to fight each other.
That's a Catch-35.