US Military Programs Run Up Against Technological Barrier: "Here is the problem: U.S. military programs are often over budget and behind schedule. For instance, the U.S. media is now engaged in a lively discussion of the F-35 Joint Strike Fighter (JSF) program. Although projected F-35 costs have doubled, deadlines are constantly being pushed back.
The problem began 20-30 years ago when the United States and other industrial countries began developing new weapons and equipment to replace Cold War-era hardware. It was clear even then that these next generation weapons would cost far more than their predecessors."