I actually had this concern in an earlier comment… it’s very likely that militaries may already have the capabilities needed but can’t (and probably shouldn’t) disclose them.<p>It’s the tradeoff between 5 civilians and potentially hundreds or thousands of sailors in wartime.<p>[1]: <a href="https://news.ycombinator.com/item?id=36416052">https://news.ycombinator.com/item?id=36416052</a>