[Bubba_Leroy]

I am surprised that with all the many millions of dollars at the terrorists disposal that they haven't just bought a plane, loaded it with whatever they want, and just fly it into a target.

If any 747s manage to enter US airspace without proper clearance they won't get very far. You could get a light aircraft in, but you can do more damage with a moving van full of fertilizer.

A much bigger risk is a dirty bomb in a shipping container set to explode in the middle of a major US port.

[GEC]

A much bigger risk is a dirty bomb in a shipping container set to explode in the middle of a major US port.

This would be bad, but I would think it would be much easier to do substantial damage by carjacking a bunch of gasoline tankers and going after bridges, tunnels, and even ramming large buildings.