Would they? What about https://en.wikipedia.org/wiki/Sinking_of_the_MS_Estonia

Some people think the 'official story' isn't right. Like it's often the case, and sometimes for good reasons.

Do they thought? When was the last time you heard Europe operating independently, or god forbid, not inline with the Five Eyes intelligence agencies?

I doubt a whale can swim in water that shallow and close to shore without a dozen countries tracking it.

Some kind of small underwater drone, however ... hmmm