Urgent responses to the Covid-19 pandemic have halted movement and work and dramatically changed daily routines for much of the world’s population. In the United States, many states and localities have ordered or urged residents to stay home when able and to practice physical distancing when not. Meanwhile, unemployment is surging, schools are closed, and businesses have been shuttered. Resistance to drastic disease-control measures is already evident. Rising infection rates and mortality, coupled with scientific uncertainty about Covid-19, should keep resentment at bay — for a while. But the status quo isn’t sustainable for months on end; public unrest will eventually become too great.