In the COVID-19 crisis, the federal and state governments have invoked rarely used powers to quarantine, isolate, and generally restrict the movement of people into the U.S. and between and within the states. Whether confining sick and suspected sick individuals to a place or restricting travel, quarantine laws curtail individual rights in the interests of public health. When quarantine measures go too far that they potentially become arbitrary, oppressive or unreasonable, it raises serious constitutional questions. Judge Andrew Napolitano explores some of those constitutional concerns as part of TalksOnLaw’s COVID-19 series.