At this particular point in history, this country has been for some time involved in a tough, costly conflict in Southeast Asia which inexorably absorbs much of the available Federal money. Americans are a rich people, riding a wave of prosperity, and much is left over for other things. But in this turbulent and questing era, they also have a good many other urgent and expensive problems and projects on their hands besides those dealing directly with natural resources and conservation. The problems are familiar words on the front pages of newspapers and in evening conversations: poverty, urban crisis, transportation, national defense, public health, world hunger and unrest, space exploration, schools, and the rest. All cost hugely. And, though individual conservation proposals of clearly critical importance most often receive fair and full consideration, one or two or more of these other realms for action usually loom larger to the eye of the public and the Congress than do environmental programs in general. Therefore they get first shot at the funds available for spending year by year. Most people have a bias in favor of their own chosen field of interest. To some, the right use of the natural earthly framework of things matters supremely. They tend toward a conviction that sooner or later it will stand very high on any list of priorities for spending, as the magnitude of what is being lost and diminished is borne in on the consciousness of the general public. Yet, as of now, it faces heavy competition for limited funds, and this is another reality for consideration, as solid for the moment as the Basin's physical problems, as solid as the politics of which it is a facet. The implications of complexity These are not the only uncertainties and complexities that confront anyone who would act toward restoring and preserving the waters and landscapes of the Potomac and making them serve man, but some of the more specific and potent ones not dealt with earlier in this report. Others have been discussed in former chapters or at least have received cursory mention. Among them are water technology's state of flux that offers a strong if hazily defined hope of being able to do things better and better as time passes; the need for more and better data; the problems for which workable solutions simply do not yet exist; the inequities or inconsistencies created by certain present Federal water policies; the dubiousness inherent in forecasts of future human pressures and problems; the frequently crossed purposes of high agencies regarding environmental action; the difficulty of feeding true esthetic and recreational values into cost-benefit computations; and the paralytic tangle of motives and loyalties in regard to planning at the local level. And a great many others could be found.