An investment programme would be presented as part of a corporate plan. To make the public trust, the prime engine for social policy seems an extraordinary devolution of parliamentary and ministerial control of that policy. Financial control of Boards of nationalized industries and other agencies within and outside departments would seem to be as sensible as for commercial programmes and could be conducted, one would hope, on the same kind of basis. By comparison, the control of non-commercial operations is in its infancy. One imagines that Ministers and their officials will be able to have considerable and legitimate influence on the way the money is spent. There has been relatively little thought on how one controls social policy and the social obligations of Boards. There are countless non-commercial activities within Government which require financial control if the money is to be spent efficiently to achieve financial ends. Many of these may be hived off to become public corporations.