[gridlock]

Why don’t we have at least a dozen of these in the US Navy?

[Little Ray]

Because they are, essentially, defensive weapons. You can’t send ‘em across the ocean to patrol and destroy the enemies’ naval forces and merchant marine (can we attack merchant ships any more?). Also, they can't keep up with fleet.

You are right. We should have some similar subs for our own forces to train against and service in one should be as prestigious as being in one of the aggressor squadrons for "Top Gun" training.