The sky will fall! The Sky is falling! We think the sky fell somewhere? Didn't it?

So after lots of scare mongering, hand waving and general attempts to convince people that there was no danger even though there was a 1 in 3200 chance it would hit somebody, the Nasa Satellite that everyone was talking about has finally re-entered the atmosphere and.....

Well promptly disappeared as nobody seems to have any idea where it went.

I don't know what's more scary, the fact that they can leave satellites that big to fall out of the sky uncontrolled or that when they do they have no idea where it end ups