This is what would happen.

All the government sees is a giant asteroid about to crash into the North Pole, which will do extensive damage to the planet. Since they have the means to intercept it, it makes sense to try to destroy it or reduce its size before it hits and alters life as we know it.

If someone throws a few large rocks at your house, do you assume that person wants to borrow a cup of sugar or has hostile intentions? If he was friendly and had a few brain cells, he'd ring your doorbell.

Whoever the aliens are, they're smart enough to manipulate asteroids, decipher a message on a satellite, and know which nations have nuclear arms. All they had to do was show up over a city like in "V" and send out a friendly message that would be understood and not overreact if somebody misinterprets the action.

The OP is a load of claptrap.

Meanwhile, US NGO's and US Based financing companies fund toilets and pumps and piping to bring fresh water into dreez-vector's country. So he and his countrymen and stop *beep* in the street and then use the runoff as cooking water.