Yep. And if nothing else, if it was transparent, we could all learn from it,
too. I heard a lecture about some of the problems with Pompeii at the EAA a
few years back: use of reinforced concrete was a problem, since the steel
rods eventually rust and the concrete crumbles, etc.
On the one hand, it's a vicious cycle: the site brings tourists & money, but
on the other hand they don't have the money to maintain what has already
been exposed (and this problem has been commented upon since the days of
William Hamilton).
But if a site this famous, and this important for the history of archaeology
(and/or historical archaeology) can't do it, what can the rest of us expect?

-----Original Message-----

We are all facing this
issue, and it continues to be a challenge.