"The [US] Defense Department is spending hundreds of millions of dollars to develop lasers that can blast rockets, artillery, and mortars out of the sky. By the end of the year [2008], military researchers promise, those lasers should be at battlefield strength. "
This is from recent news release. Lasers pulse at the speed of light, thus obviating any need for complex target tracking systems. If they can bring down a rocket they can bring down a jet plane. What does the above mean for costly air forces and the vast infrastructures (airports, fuel depots, maintenance, pilot training) that keep them going?