Could the Space station get loose and come to earth?

Though at present I would say this is a very unlikely scenario it could still happen either by accident or on purpose by someone or many someones.

If the Space Station came to earth at the wrong speed and hit the wrong place could life in the U.S. or Europe or Russia or China basically end as we know it? Maybe.

Next, Could Russia or China or the U.S. grab an asteroid going by and send it to earth? Yes. BY using spaceships with strong enough thrusters they could move the asteroids trajectory much like a tugboat moves a ship into a harbor. And could that asteroid end life on either China, Russia or the U.S. or Europe or Africa or South America or anywhere else? Yes.

Next, Could an asteroid on it's own (if we didn't realize it early enough) come to earth and kill us all? Yes!

I think it is very sobering to realize all these things so this is why I'm writing about it here.

Because this is how the dinosaurs ended 65 million years ago already. The Gulf of Mexico is the long term evidence of this. It didn't exist before 65 million years ago before the asteroid cratered in there.