The counterterrorism expert John Robb reveals how the same technology that has enabled globalization also allows terrorists and criminals to join forces against larger adversaries with relative ease and to carry out small, inexpensive actions—like sabotaging an oil pipeline—that generate a huge return. He shows how combating the shutdown of the world’s oil, high-tech, and financial markets could cost us the thing we’ve come to value the most—worldwide economic and cultural integration—and what we must do now to safeguard against this new method of warfare.