NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competencies and with regard for appropriate balance.

This report has been reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise, in accordance with procedures approved by the NRC's Report Review Committee. The purpose of this independent review is to provide candid and critical comments that will assist the institution in making the published report as sound as possible and to ensure that the report meets institutional standards for objectivity, evidence, and responsiveness to the study charge. The review comments and draft manuscript remain confidential to protect the integrity of the deliberative process. We wish to thank the following individuals for their participation in the review of this report:

James F. Lardner (Deere & Company, ret.)

Lawrence Hodges (Technical Affairs Consultant, Ltd.)

Earl H. Dowell (Duke University)

John E. Halver (University of Washington)

William Gordon (Rice University)

While these individuals have provided constructive comments and suggestions, it must be emphasized that responsibility for the final content of this report rests entirely with the authoring committee and the institution.

A limited number of copies of this report are available from:

Division on Development, Security, and Cooperation

National Research Council

2101 Constitution Avenue, NW FO2060

Washington, DC 20418

Tel: (202) 334-2644