In the midst of such worldshaking news, it's a small thing -- but "five nuclear powers"?
USA, UK, Russia, France and India make five.
Plus, there's China and the one whose name cannot be mentioned, Pakistan. Plus Israel, unofficially, and South Africa, once.
Wonder which five the author had in mind...
Interesting error.
No idea. UK and USA may be lumped together in some minds. US, UK and FRANCE may be lumped together in some minds.
Stillll . . . seems like a glaring error of unknown origin, cause.