Now the reason Morgan Stanley has been taking a keen interest in all of this is because of the noises coming out of the Financial Policy Committee - the new macro regulatory arm of the Bank of England currently working in an informal capacity but soon to have statutory powers - that the capital banks hold against mortgages is too low.

BBC: Are banks taking dangerous mortgage risks?

It's in effect a demand for the new macro-prudential regulator being created by the Treasury which will sit within the Bank of England - the Financial Policy Committee, of which Lord Turner is a member - to have important and unprecedented new powers to determine credit creation by banks and to determine the distribution of credit.

BBC: Bank lending 'should be controlled'