They also periodically use live munitions on decommissioned ships, sinking them, for the purposes of validating all sorts of stuff.

So, tactical ocean trash?

	▲	rho138 3 hours ago \| parent \| next [-]
		Almost every decom’d vessel that gets blown up for RIMPAC is turned into an artificial reef.
	▲	pfdietz an hour ago \| parent \| prev [-]
		Steel in the ocean disappears in a century or two. Look at all the rusticles draping off the wreck of Titanic. Bacteria are eating the metal and making slime.