As far as I know there is no international law covering space debris.

IF such a piece should hit private property, a house, car, person; who is liable? The country that launched? The country it fell on? Your personal homeowners insurance?

It seems perfectly acceptable to launch whatever one wishes, knowing it will fall back some day (orbital decay), and not have anyone accountable. I know some of the space junk would be big enough to hit the ground. Shouldn't international courts get involved before it's an actual event?

Jammer