If terrorists were able to shoot it down at that level and speed, well, then...they will win.
But that isn't the case.
I believe there are
only four "categories"
of tin foil foul play:
Sabotage on board;
some foreign, high altitude
missles; some foreign
black ops near-space plane;
some foreign black ops high tech
energy weapon.
If it was foul play,
I don't think our government
would say publicly,
because I don't think
anybody would admit
that we have a foe
with the resources
to accomplish any of
those general things...