In the popular imagination, space is the final frontier. Will that frontier be a wild west, or will it instead be treated as the oceans are: as a global commons, where commerce is allowed to flourish and no one country dominates? At this moment, nations are free to send missions to Mars or launch space stations. Space satellites are vital to many of the activities that have become part of our daily lives—from weather forecasting to GPS and satellite radio. The militaries of the United...
