Nothing says the response has to be positive. One possible response is "papers please"-style national IDs and autoturrets at the border. https://www.theatlantic

Nothing says the response has to be positive. One possible response is "papers please"-style national IDs and autoturrets at the border. https://www.theatlantic.com/science/archive/2016/10/trump-the-first-demagogue-of-the-anthropocene/504134/ https://www.theatlantic.com/science/archive/2016/10/trump-th...