Most submarines are built with an emphasis on stealth.Advanced propeller designs, extensive sound-reducing insulation, and special machinery allow the submarine to be undetected but they have to eliminate the “submarine wake” and the sonar buoyos.In 1984, the U.S. Navy oceanographer aboard the “Challenger” space shuttle into space and successfully to detect other submarines of the ripple. Currently, the U.S. Navy anti-submarine satellite is in space and submarine sonar array, sea anti-submarine ships, air anti-submarine aircraft, together constitute the three-dimensional anti-submarine network.DARPA is working on anti submarine detection warfare.
It’s the suitcase nuke that makes the ultimate nightmare scenario. The Russians wouldn’t have to launch missiles from land or sub. Vaporize Congress, the White House (and the ‘football’), and the Pentagon with a suitcase, and they could launch the rest of their stuff at their leisure without fear of retaliation. Without the codes, the subs couldn’t launch their stuff.