One possibility I've heard aired on Twitter, which I find somewhat disturbing (it's telling of my current distrust of state actors that I even consider this highly paranoid scenario a possibility), is that this will be used as a sort of digital Pearl Harbour to justify hardening laws against hackers, security researchers, etc. Of course, the two aren't really related, and in fact security researchers and hackers increase the security of the US against such things, but that hasn't stopped the lawmakers before.
> > justify hardening laws against hackers
> Seems far fetched as North Korean hackers are about as far away as you can get from US influence and power.
The concern that they'd state would be local hackers working for or with those elsewhere for what-ever reason (payment, disenfranchisement with local policies, ...) or just doing it "for the lols".
The potential knee-jerk hardening of laws in response to this sort of thing is not specific to this case: it could equally happen in response to any other very public exploit. The same for the more insidious "we've been waiting for an excuse to..." hardening of laws, for a more paranoid view.