I'd seriously consider leaving any major city at this point. Outside a 100 kiloton direct blast radius. They haven't been sitting back and whistling dixie.
I wouldn't. AQ has never had access to serious kilotonnage. Bomb maitenance alone is a huge pain in the ass. If they have anything at all, which I doubt, it's old Soviet battlefield stuff whose blast capability I would doubt.
I don't mean to be pollyanish at all: one small Sov tac nuke can have a yield of, say, 20KT. Hiroshima was 22KT, iirc. I just doubt that they have it.
Of course, they'd be stupid enough to use it if they did have it, wouldn't they. It's not exactly as if they're reasonable folks.
There may come a time after all when we may have to kill these people, all of them, just to survive.
Be Seeing You,
Chris
The first one or two nukes they get will go off when they are trying to rewire it on somebody's kitchen table or detonate in their trunk when they hit a bump. That's how we'll know they got one.
Say when!