Entire US Stealth Fighter Jet Fleet Grounded

With the current debate between the need to provide our military with the best technology and the need to cut some spending, you would think that our government would make the most of what they had. But instead, news comes out that our entire stealth fighter plane fleet is currently grounded because of one or two problems. What is worse, is that the fleet has actually been grounded since May. It is unthinkable to me that with all the best engineering minds, neither the military or the manufacturer can figure out how to fix these problems. On top of that, our government just committed to spend over a half a Billion dollars on more of these planes. I agree that we need to make sure these planes are safe before we risk our pilots lives in them, but how can it take more than 2 months to diagnose the problem? This should be the number one priority for the manufacturer and the government should withhold any future payments until these problems are fixed.