His bovine is working overtime.
F-16s were scrambled to (if need be) shoot down civilian airliners on 9/11.
Either we've been lied to about Flight 93 or the story is one of genuine heroism, (I'll go with the latter), but at the point where that aircraft got too close, it would have gone no farther.
He can't authorize downing UAVs? Bullshit. He knows whose they are.