FrontMatter -- Preface -- Contents -- ID AND VERIFICATION TECHNOLOGIESTECHNOLOGIESECHNOLOGIES -- Introduction--Stephen S. Intille and Visvanathan Ramesh -- Ongoing Challenges in Face Recognition--Peter N. Belhumeur -- Designing Biometric Evaluations and Challenge Problems for Face-Recognition Systems--P. Jonathon Phillips -- Large-Scale Activity-Recognition Systems--Matthai Philipose -- ENGINEERING FOR DEVELOPING COMMUNITIES -- Introduction--Garrick E. Louis and Amy Smith -- Challenges in the Implementation of Appropriate Technology Projects: The Case of the DISACARE Wheelchair Center in Zambia--Kurt L. Kornbluth and Philip Osafo-Kwaako -- Engineering Inputs to the CDC Safe Water System Program--Daniele S. Lantagne -- Sustainable Development Through the Principles of Green Engineering--Julie Beth Zimmerman -- Science and Engineering Research That Values the Planet--Daniel M. Kammen and Arne Jacobson -- ENGINEERING COMPLEX SYSTEMS -- Introduction--Luis A Nunes Amaral and Kelvin H. Lee -- Complex Networks: Ubiquity, Importance, and Implications--Alessandro Vespignani -- The Promise of Synthetic Biology--Jay D. Keasling -- Population Dynamics of Human Language: A Complex System--Natalia L. Komarova -- Agent-Based Modeling as a Decision-Making Tool--Zoltán Toroczkai and Stephen Eubank -- ENERGY RESOURCES FOR THE FUTURE -- Introduction--Allan J. Connolly and John M. Vohs -- Future Energy--John K. Reinker -- Organic Semiconductors for Low-Cost Solar Cells--Michael D. McGehee and Chatzun Goh -- Research and Development at the U.S. Department of Energy on Hydrogen Production and Storage--Sunita Satyapal -- Fuel Cells: Current Status and Future Challenges--Stuart B. Adler -- DINNER SPEECH -- Engineering for a New World--Shirley Ann Jackson -- APPENDIXES -- Contributors -- Program -- Participants.