Given how far off from the city centers many of those place names were -- look where they put Саннивейл, Маунтин-Вью, and good lord, Сан-Хосе, for example - it's good to know that when the Red Dawn[1]-style invasion finally came, their paratroopers would have been horribly confused at where they landed. Thinking they were about to land on the roof of the Blue Cube, but getting ambushed in a parking of some Fry's or Denny's instead.
i wonder what navigation system North Korea is using/planning to use for its ballistic missiles. Commercial GPS signal with fallback on good old star-based plus inertial?
> In GPS technology, the term "COCOM Limits" also refers to a limit placed on GPS tracking devices that disables tracking when the device calculates that it is moving faster than 1,000 knots (1,900 km/h; 1,200 mph) at an altitude higher than 18,000 m (59,000 ft).[2] This was intended to prevent the use of GPS in intercontinental ballistic missile-like applications.
commercially available GPS receivers do normally implement the limits. This is why i said "commercial GPS signal" as the signal itself doesn't have any such limit, and anyone can make their own receiver without such speed/altitude limits and with higher accuracy than typical commercial receiver.
I wonder what navigation system North Korea is using/planning to use for its ballistic missiles.
For the shipping containers (not ballistic missiles) they'll most likely smuggling these in on, for the next few years, any COTS system (on an appropriately flagged freighter) will suffice to get them across the Pacific. From there they'll just usual visual identification to get it close enough to place it could do enough damage. Like near the Embarcadero, say.
What did the ICBMs from the cold war (pre-GPS) use? Don't need GPS to direct ballistic missiles. Besides, I don't think US ballistic missiles depend on GPS either, a scenario where GPS is one of the first targeted systems is not unimaginable.
[1] https://en.wikipedia.org/wiki/Red_Dawn