I suspect because it may be that the days of Carrier supremacy are behind us, much like the days of the Battleship are gone. A carrier is essentially a single

I suspect because it may be that the days of Carrier supremacy are behind us, much like the days of the Battleship are gone. A carrier is essentially a single large target that when taken out negates the effectiveness of your opponent. Not sure what its successor is. Probably some form of stealth ship (since that seems to be the focus) armed with smart missiles. I heard the Chinese were playing around with torpedo/missile hybrids which apparently changed the game since they are apparently impossible/hard to stop. Its a fair assumption that the US has something similar (or is working on it).