We also need a little more honesty from our political leaders re our relationship with the Saudis. They buy our London real estate (& some of our defence equipment), tool around Knightsbridge in fast cars, and all the while fund Daesh (allegedly).
One of the main ways of bringing these heathens to heel will be by strangling their funding. Clearly their hold over some oil supplies is a factor here, but the Saudi aspect needs addressing.