A new section showing how ethical issues are viewed in non-western societies including China, India, and the Middle East. Codes of Ethics of professional engineering societies from outside the U.S. have been added. The issues brought up by competitive bidding by engineers are discussed. Case studies have been updated. Several new case studies including ones on the I-35W bridge collapse in Minneapolis, issues related to the recall of Toyota passenger cars, and the earthquake damage in Haiti have been added. Many new and updated problems have been added.