Watching the Time Team last night and there was the usual guff about putting the skeletons back in the ground and not excavating anything else, leave it all safe in the ground for folk in the future with better or less-invasive techniques. Such touching Victorian faith in the ever-onward progress of society. Of course you see where it is all coming from, the destruction of the likes of the barrow diggers. But picture another 100 years time they look back to now and condemn today's archaeologists for not having investigated "look what they could have done, the information that could have been saved if only they had seen the Act of X coming along and sweeping all conservation issues aside for practicalities". Also archaeology keeps on growing. It is not all that long ago since industrial archaeology, let alone that of World Wartime sites, was pooh-poohed. The number of sites is expanding with time. Tackle what we have now before the field archaologist disappears. No sense saving sites for a prudent posterity if the never get interragated anyway. Stop the rot before it is too late (I can see whole new type-sites only being recognised after the sites themselves are gone !!).