Professor, Cornell University. Prof. O'Rourke is the Thomas R. Briggs Professor of Engineering in the School of Civil and Environmental Engineering at Cornell University. He holds a Ph.D. and M.S. degree in Geotechnical Engineering from the University of Illinois at Urbana-Champaign and a B.S.C.E. from Cornell. Professor O'Rourke has been a member of the teaching and research staffs at Cornell University and the University of Illinois at Urbana-Champaign. His teaching and professional practice include geotechnical engineering for earth retention systems, foundations, and soil/structure interaction; earthquake engineering; underground construction technology, and engineering of large, geographically distributed systems, such as water supplies, gas and liquid fuel systems, electric power, and transportation facilities. He authored or co-authored over 360 publications on geotechnical, underground, earthquake engineering, and impact of extreme events on civil infrastructure. He was principal or co-principal investigator on more than 75 research projects, and has supervised 24 Ph.D. and 22 M.S. theses. Since 1995 he delivered 150 invited lectures, keynote, and conference presentations worldwide.