The political process used by this nation is largely based on a legal model. It is dependent on precedent and on a representative, adversarial process. The political process is characteristically asked to respond to matters of life and death. There is always plenty of room for disagreement about policy issues. Disagreements range from the dimensions and scope of the issue to details of its resolution. The more consensus there is about the scope and dimensions of an issue, the more amenable are the adversaries in combining their search for ways to resolve it. There is no agreement on the issue, on either the strategies for resolution or even the scope of the issue itself, there is little hope for the reasoned use of any analysis, let alone using a sophisticated technique on which there is professional disagreement. The chapter also presents some closing thoughts on the key concepts discussed in the preceding chapters of this book.