My point was that a surprisingly small amount of explosives is a risky bet for nearly anything as vulnerable to decompression as the pressurized hull of an airl

My point was that a surprisingly small amount of explosives is a risky bet for nearly anything as vulnerable to decompression as the pressurized hull of an airliner. You could construct skis that incorporated a very thin layer of HE sandwiched in the material and/or had a few drilled channels of HE through the actual ski that could make some poor bird fall right out of the sky. Believe me, the red teamers in the government have thought of this and done their best to try and make the front-line workers at least aware of how THEY would sneak a bomb on a plane. I know someone who regularly carries two weapons in the cabin on every flight he's on and has since 9/11. His trick was to make them look like ordinary things you'd never suspect. Don't worry though. He's one of the good guys. :-)