The us does not need new fighter jets. The current generation drones is enough. If the us needs something it is cheaper and better air to air missiles. Not that there is anyone to fight anyways. A drone with 2 guided missiles that can be lost with no human casualty is allot better than any human carrying fighter aircraft could every be. And it does not have to be fast cause 1. the missiles are fast 2. it does not matter if the drone is lost.