As it is known, Andrei Sakharov, being the father of the Soviet thermonuclear bomb, proposed to create a huge torpedo with YASU, the task of which was to deliver an atomic charge to 100 Megatons to the US coast. The project was named T-15. According to the engineer, the wave caused by the undermining of such a powerful warhead, was to wash off the entire coast of the enemy.
Today in Russia finally created like weapon. Thanks to the atomic power plant, the mega-torpedo created has an unlimited range.