500 Fifth Street, N.W. Washington, DC 20001

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 competences and with regard for appropriate balance.

Support for this project was provided by the Defense Advanced Research Projects Agency (Award No. N00174-03-C-0074) and by the Central Intelligence Agency and the Department of Homeland Security with assistance from the National Science Foundation (Award No. IIS-0344584). Any opinions expressed in this material are those of the authors and do not necessarily reflect the views of the agencies and organizations that provided support for the project.

International Standard Book Number 0-309-10125-5

Cover designed by Jennifer M. Bishop.

Additional copies of this report are available from:
The National Academies Press
500 Fifth Street, N.W., Lockbox 285 Washington, DC 20055 800/624-6242 202/334-3313 (in the Washington metropolitan area)

Copyright 2006 by the National Academy of Sciences. All rights reserved.

Printed in the United States of America

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement