And if you cast your minds way back to Tuesday you will remember that what I said was that the Americans were trying to create a system of limited government er and yet one which er protected the liberties of individuals  not all individuals, not black individuals especially but  of individuals, this was the rhetoric of the time  and the main device that they invented to do this was something called the separation of powers and they argued that, where political power is concentrated, the potential for abuse is greater so that where executive and legislative powers are held in the same hands, as they are in our system of government, the, there is more prospect of government encroaching upon the rights of individuals.