This toxic waste is expected to include RADIOACTIVE waste.
And there are still many barrels down there waiting to be pulled up.
I think the Italian courts can through these Mafia pirates in to the slammer for life(that's if the judges are NOT APID BY the Mafia).
http://www.treehugger.com/files/2009/09/toxic-waste-ship-sunk-mafia-found-italy.php