I've done this before, on accident... I had a ten killstreak, one more for the chopper gunner. The harrier started shooting but I just laid down and didn't move at all, and it just shot around me the whole time. Works for helicopters SOMETIMES.
To do this with the nuke:
1. Own a real AK47
2. Play MW2
3. Right before a nuke goes off, shoot your TV with the AK47 and yell "1...3...3...7!"
4. You just dodged a nuke!
NOTE: IT ONLY WORKS IF YOU ARE A FREAKIN AWESOME NINJA MASTER