Yeah, right.
Then he immediately talks about aerial refueling...
As to the nuclear bomb & asteroid blast..... (eye roll)
What sort of a thing could do all that?
that was probably bad story editing.
being hardened to radiation, it can withstand a blast from a nuclear bomb, but depending on the size of the bomb, the shock wave, and the atmospheric winds outwards AND backwards, it has to be a certain distance away in order not to be knocked out of the sky.
i think they did a really crap editing job on that point.