We all know the world has changed significantly since the terrible events of 11 September.With it comes the potential threat to the City of London and the world financial system. Such a situation calls for contingency planning and precautions of the highest order. But this contingency planning, good as it is, can go only so far. And both the government and the Corporation of London, as the local authority, must take other precautions to stifle the terrorists’ sources of finance.