And the future is law enforcement. On the positive side GoBetween could one day eliminate the need for human officers patrolling the streets. Most likely we will end up with both.
Recent Writing in Defense of Free Immigration
"The Trumpian Ice Age: The Frigidity of Collectivism" "Immigration Policy in an Nth-Best World" "Free Movement Increases Wealth" "Static Analysis Clouds Immigration Debate" "More on Immigration and Public Property" "Immigration Control Threatens the Rule of Law"...