You sure put that into sobering words.
Well, even with 30 devices, they wouldn't achieve "total destruction".
Sure, they'd make a heckuva mess of things, and kill about 3 million (plus or minus) people. BUT..the US has around *300* million people - and the 297 million that are left would be really, REALLY PO'd.
30 (or even 3) nukes would start WWIII quite easily. The ME would be vaporized in retaliation. Russia MAY enter the fray, along with China. We'd retaliate. The earth would be TOAST. Game over. Do not pass go, do not collect $200.
What kind of real-estate would be left for AQ to build their promised land? NOTTA. Nothing here. Nothing in AsiaPac. Nothing in EMEA. Diddly.
So, what would AQ have to gain by detonating even *3* nukes? Just the end to them and everything else around them.
Doesn't seem like so hot of a plan to me.