Thomas Juneau is a professor with the University of Ottawa’s Graduate School of Public and International Affairs. Vincent Rigby is a former national security and intelligence adviser to the prime minister and the Slater Family Professor of Practice with McGill University’s Max Bell School of Public Policy. Stephanie Carvin is an associate professor with Carleton University’s Norman Paterson School of International Affairs. For decades, a small circle of government officials and academics have periodically debated whether Canada should establish a foreign human intelligence service. Proponents have argued that, as the only G7 member state without such a body, Canada needs...