You are missing the point of what Gen Keys is saying...his point is that employing air assets to patrol highways (especially in a urban environment like Rob points out) to find IEDs is an inappropriate way for the joint force commander to employ his air assets....and he's right. There are far more effective ways to use limited air assets. He isn't saying that airpower can solve the problem, he's saying that we need to be smarter in how we employ them and recognize the inherit strengths and weaknesses.
Bookmarks