Great events of history often start with deceptively small incidents. A glacier melts and suddenly we have Global Warming. Several gay men dying in a ward in San Francisco in 1984 and suddenly we have the AIDS epidemic.
Or a submarine disappears and we suddenly have the beginning of the end of all civilization.
No, those who would suggest that China or Russia did such a thing are just war mongers looking to increase the defense budget. This explanation is just a front to hide the possibility of what really happened.
What else could have happened then? Notice where the submarine went missing. That is not so far from the worst oceanic radiation leak in history, Fukushima. Perhaps the radioactivity from this disaster has caused the mutation of giant underwater monsters. Everyone has seen the movie Godzilla, we know the score. What if those movies channeled the future of the end of our civilization? What if these giant radioactive monsters were sleeping but were disturbed by someone dragging a submarine over them?
That is an explanation that you will not read in the Western press anytime soon.
We may all look back at the missing submarine and realize that we were witnessing the Beginning of the End.