[LS]

I know nothing about ships/boating. I am told by a pro boater that his crappy radar can detect a sheet of aluminum on the water hundreds of yards out, so it seems we are looking at jamming here.

[The Westerner]

LS, did you read the posts above at #17 and #19? Stormprepper says accidents happen daily, we just don't hear about them. Smokingun suggests that the “modern Navy” is trying to manage their complex boats with less manpower. You suggested jamming of radar by hostile actors. All interesting and only the radar jamming theory would be an act of war...especially given the trouble brewing in that region today.