The questions posed in the task for this study are part of a very broad and important set of issues for the Department of Defense. To answer them required the Committee on Critical Technology Accessibility to develop its own perspective about the context within which the questions could be placed. As a result, this report provides judgments and recommendations about both the specific questions and the broader context. I wish to express my appreciation to the members of the committee for their contributions to the preparation of this report. The committee is also grateful to the staff of the Technology Warning Division of the Defense Intelligence Agency for its.