[jet_silver]

I'd imagine that classified items on the drone would be protected by destruct charges. Now, when the Chinese pilot bumps the thing it simply produces a large 'bang' and a rain of small airplane pieces. End of harassment issue.

If they were -my- classified items I'd make sure the radio link was a dead man's switch, too - so if someone else tried to take it over or jam it - bang again.

But I'm not as devious as the DoD. They might very well send over cool widgets that do nothing but look like they just have to be secret and interesting. (Those cool widgets have destruct charges in them, too, and warnings about how you shouldn't try to take them apart. In English.)