It`s a MOVIE!It`s based on Clancy`s book.It`s a work of fiction.
Clancy's books are well researched and all have technically and politically plausible plots and military actions. His biggest fan base is within the ranks of the military because of the realism in his books and his understanding of weapons systems, their capabilities and actual uses.
In fact, Clancy was grilled by the pentagon and several other agencies responsible for keeping military secrets, secret, because of his accurate knowledge and some of the dots he connected in the plot in The Hunt For Red October.
What Hollywood does with it after they buy the rights is not something he or any author can control. They can argue, but thats all.
Haven't seen it, probably won't, but from what I've heard it is not very true to the book. Apparently it substitutes Nazi types for the real bad guys...Islamic fundamentalists. And why couldn't they keep a Denver Super Bowl as the target? Why Baltimore?
The book is a great read.