Jon, here's a soft spot - the World Heritage Convention which the Tories have been unable to alter in favour of development and which has enabled ICOMOS UK to deliver this body blow today -
“To suggest that this damage can be mitigated by benefits brought by the tunnel to the centre of the WHS, is to fundamentally misunderstand the commitments made to sustain OUV at the time of inscription of the property on the World Heritage List”
https://heritageaction.wordpress.com/2017/03/07/now-icomos-uk-totally-condemns-the-short-tunnel-at-stonehenge/