>at what distance from Avebury/Delling would people say it's OK to molest the stones then?<

point taken, but I still feel they could have done with treating this subject with a bit more respect. I think archeology and reconstruction-of-past -event type thingies should be as un-intrusive as possible. we don't know what evidence we might destroy which will be of interest to future generations. I know it's unlikely that future folks will want to study that particular stone, but it's the principle of the thing. Destructive science is not something that should be encouraged on the TV if you ask me.