Vixen
Penultimate Amazing
Okay, but you're quoting an idiot.
Submarines are hunters, not escorts. Ships on the surface are tracked with radar, something a Swedish Navy vessel would have, and escort is something surface ships do, from time to time. And submarines use passive sonar to track ships, and they don't need to be close.
Since you brought this ridiculous submarine theory up, I have to ask what, exactly is a submarine going to do if Estonia was intercepted by a Russian warship? Have you thought that part through? A surface ship gives you options but a submarine is limited to torpedos, and missiles. You're implying Sweden was willing to sink a Russian ship in the commission of a crime (smuggling "stolen" Russian military secrets)?Sweden was not part of NATO, how do you think that would have gone over? Do you really believe Sweden would start a war, unilaterally, with Russia?
Again, there is no evidence of explosives nor a collision. You have no longer have any room to argue.
I don't know why Kurm has that theory. Maybe he is trying to salvage the honour of Estonia, as it were, having perceived that it was the Estonians being blamed for the accident, wrongly in his view. But there is no mistaking a massive breach in the hull.