Should wrecks such as Admiral Graf Spee be raised, and can remote surveys still be useful?
Short answerWar graves and historic wrecks should remain undisturbed, while non-invasive ROV surveys such as a Bismarck inspection can still be worthwhile when funding permits.
NotesThe stated preference is to leave war graves and historic wrecks such as Admiral Graf Spee undisturbed. That principle does not rule out remote observation. A small ROV survey of Bismarck could inspect evidence such as torpedo damage without raising the hull. Funding is the practical limit, while a later example notes similar remote work on lost Polish submarines.