On any given night last year, half a million people in the United States were experiencing homelessness, and more than 60% of them were staying in emergency shelters or transitional housing programs. Now, those same facilities are hot spots for COVID-19. It’s hard to social distance when you’re cramped, sharing bedrooms and sharing locker-room style communal showers. Today, we’ll look back at the history of how America has sheltered unhoused people, and how those approaches can make it hard for them to get back on their feet even when there’s not a pandemic going on.