And colliding with a tanker and being in the media for several days doesn't reveal your position? I really get your point about stealth and would agree that it

And colliding with a tanker and being in the media for several days doesn't reveal your position? I really get your point about stealth and would agree that it would make sense not to use radar. On the other hand, if you can't avoid collisions (for whatever reasons) your position will be known very quickly anyway.