Read up on the '60s Robert Strange McNamara TFX debacle if you want to understand a lot about the F-35/JSF now and likely in the future, minus it also trying to do air superiority (we learned that lesson, although we didn't procure enough F-22s). The Strategy of Technology by Pournelle et. al. is a great source: http://jerrypournelle.com/slowchange/Strat.html