Government officials warn that America remains in danger from Al Qaeda and other terrorist operatives who wish to destroy us. This is not a one-front war, because we also face dangers from within our democratic institutions. Suppose our enemies have invaded the United States through immigration for the express purpose of organizing themselves politically? Suppose they present themselves as benign and seek to register voters, becoming politically active in order to elect their people to office and change U.S. policy in the Middle East? What if their intentions are the eventual destruction of this nation through its democratic processes...