From my aeronautical point of view, if they stopped spending money in that useless F35 plane (it's a total failure in pretty much all ways as of right now), every single one of them costing about 300 000 000 dollars more or less (there is no official figure but that's a current approximate, it's of course expected to be way less once production is starting), they could already cover social security needs for a few years cash ! It officially cost them about 90 billion dollars as of 2015. hell the congress and the pentagon officially (yes) admitted it is a failure but they are so far into the program they actually prefer going on as opposed to canceling and having a net loss. The military lobbying is that bad in the USAF/Navy ! People voting next time should start doing something about this honestly, it's just out of control and all that money must go in some big pocket at lockheed and friends
May 2013 :
Current aircraft software is inadequate for even basic pilot training.
Ejection seat may fail, causing pilot fatality.
Several pilot-vehicle interface issues, including lack of feedback on touch screen controls.
The radar performs poorly, or not at all.
Engine replacement takes an average of 52 hours, instead of the two hours specified.
Maintenance tools do not work.[188]