As the Euro zone is now discovering with regard to sanctions against Russia, for such measures to be effective they hurt the sanctioner as much as the sanctioned. Such is the nature of our global economy. So I am therefore slightly surprised that the Telegraph's plea this morning was not for British car drivers to stop funding ISIS. Oh yes. That trip to Tesco today is putting money in the coffers of the abominable ones - from both their own wells in Iraq and the profits from those in Saudi Arabia and Qatar donated in support of the Sunni side in the Islamic civil war.
Lord Dannatt, a soldier who cannot be expected to understand such things, effectively calls for the UK to bankrupt both the Saudi kingdom and any sympathetic gulf states. And if we can't do that, we must ban them from investing their oil billions in Britain - perhaps they should invest in building the Caliphate instead? After all, I don't give much for the longevity of some of those soft pederast princes when the Hard Men turn up in town.
As Sunni funders of the Islamic revolution are now discovering, radicalism once released cannot be controlled. After the Girondists and Montagnards had cut off the heads of Louis XVI and his wife, they rapidly turned to cutting off each other's noggins - and more fratricidal revolutionary brothers ended up guillotined than aristocrats.