Globalization and technology have altered public fears and changed expectations of how government should make people safer. This book analyzes how Europeans and Americans perceive and regulate risk. The authors show how public fears about risk are filtered through political systems and subjective lenses of perception to pressure governments to insure against risk. Globalization and federalism are two forces that promote convergence between Europe and America, while culture and politics often push governments down different roads. This tension is explored in case studies dealing with four cutting-edge risk frontiers: immigration, flood control, food safety and voting technology.