Nothing is certain. It looks like an implied False-Flag attack by someone spoofing the North Koreans. Not a very good movie. As a previous poster said, I felt like a fool watching it. I should have watched “Fail Safe” or “Dr. Strangelove” again. Or maybe The Bedford Incident.” Hell, watching “The Russians are coming, the Russians are coming” would have been more enjoyable. And least if I’d watched “The Sum of All Fears” I’d have the pleasure of seeing Baltimore nuked.
Then a rare miss from a good director. "Point Break" was my favorite of hers. "Hurt Locker" also excellent.
Some of the reviews are brutal, and hilarious.