Why couldn't private security be part of international freight? The costs for this security could be added to freight costs.
For example, Russian private security contractors successfully protected ships near Somalia - https://www.youtube.com/watch?v=4XJ0nblZjZE
>What happens if a container sinks near a popular beach? I doubt people want these kinds of risks.
Governmental navies don't experience these risks? Also, read this section about liabilities for private nuclear reactors: https://en.wikipedia.org/wiki/Nuclear_marine_propulsion#Civi...