The Poseidon torpedo is a nuclear powered, nuclear armed UAV - you can imagine it cruising around the oceans on near unlimited energy supply waiting for the order to strike at the pre-programmed target - an aircraft carrier it is trailing or a perhaps coastal city. It will either be a genuinely a new category of doomsday weapon or a white elephant, along the lines of Nazi super guns and 100T tanks.
Doomsday, perhaps. Genuinely new, no. Several countries have had the theoretical ability to leave a nuke on the ocean floor with a timer and/or a remote control, for decades now.
I can also image it wondering around the globe and mistaking a cruise ship for something and blowing it up. Much like shooting down a Korean Airlines Jet and MH17.
Or like the Ukraine shooting down Russian passenger jet flying from Israel [0]. Or like the US shooting down Iranian passenger jet and later giving medals to the crew that did it [1].
More sadness. A country filled with smart hard working people crippled by leadership who's primary interest is enriching themselves and refighting WWII. What a waste.
