What Is a Nuclear Submarine?

The deal is going to cost Australia more than $360 billion. It doesn't mean that it's going to carry nuclear weapons. The advantage of nuclear propulsion is that you can essentially stay underwater indefinitely. India could very well replace nuclear-tipped ballistic missiles on scorpion submarines if we can get it done. Two already are in operation and two are being built right now. And we will have many more in the future,. better versions, better more enhanced submarines.