I personally have lamented that the Italians don’t have a good record of taking care of their heritage. Pompeii is a good example. The site is need of repair. Walls are literally falling down in the site and much is in horrible state of disrepair. More than a dozen buildings are expected to crumble into ruin in the next couple of years. For example last year rain caused the arch of the temple of Venus to fall. A current article by the Smithsonian details some of the major issues, which there are many.
http://www.smithsonianmag.com/history/fall-rise-fall-pompeii-180955732/?no-ist