Rather worrying reading... they may operate up to 50'000ft but when do they go up and where do they come down? Anyone know the dimensions of the things? One has to weigh up the benefits to the anti-terrorism fight versus the danger of collisions with ALL aircraft in the UK skies.
Not even gonna start on about the civil liberties issue here - looking at Google Earth's new street project and now this I really do despair....
VFE.