The fact English Heritage will gain a massively lucrative near-monopoly on viewing Stonehenge the day the A303 is put underground has nothing to do with its support for the scheme.

So say it’s supporters. In fact, some of them say the mere suggestion there’s a connection is disrespectful and down to the lack of understanding of amateurs as all the archaeologists involved will do a thorough, professional job. We entirely agree that they will, but it isn’t the archaeologists whose motivations are subject to public doubt: it’s the institution itself.

We have a solution to public cynicism. Let English Heritage publicly announce it is freezing the number of visitors and the prices it charges for the next ten years. Or, that it will donate any post-tunnel rise in its gate receipts to charity.