/sci/ - Science & Math

Assuming a static, traditionally-built NPP. This is because the submarine can be lifted into a containment box and safely towed to a secure area for deconstruction. The US itself did this in 1974 when it raised the Soviet diesel-electric submarine K-129 in the Hughes Mining Barge (pic related), a submersible drydock previously built for geological research with the Hughes Glomar Explorer. The US Navy likely has contingency plans to do it with their submarines should they suffer an accident, if only so that Russia or China do not salvage them first.

This is why the US government decided to transition the entire nuclear industry into Small Modular Reactors starting in the mid 2020s, so that if an accident occurs the reactor can be bottled up and safely deconstructed while the manufacturer sends a replacement unit. Utilities like it because it's more fault tolerant, insurance companies like it because it reduces risk and banks like it because the plant does not have to be fully constructed to begin revenue operations.