an editorial defending "treasure hunters" (i.e. people who salvage wrecks):
http://www.nytimes.com/2007/06/08/opinion/08kurson.html
part of the argument: if these guys didn't risk their lives finding this stuff, it would never be found...
on the other hand, the understanding in archaeology is usually to leave it alone if you don't absolutely have to excavate it, right? lots of tell-talw words like "treasure," "romantic," "adventure," risk," etc.