Russia Develops Nuclear Powered Unmanned Doomsday Drone-submarine

Announced today to the Federal Assembly by Vladimir Putin.
The underwater drones can navigate great depths and international distances at a speed many times faster than any modern torpedo, submarine or surface ship. They have low noise, high maneuverability and are practically invulnerable to the enemy.
The drones can hit a wide range of goals, including aircraft carrier groups, coastal fortifications and infrastructure.

The device is nuclear powered and has a unique small size - 100 times smaller than that of modern submarines and can be equipped with both conventional and nuclear weapons.