The good news is systemic change may happen more rapidly than once seemed possible. But how the US and the world address the climate crisis will be a powerful determinant of what is possible.

Imagine a world in which insulin and PrEP—the revolutionary one-a-day preventative HIV pill—were available to all who needed them at prices they could easily afford. Imagine that the effective Lyme disease vaccine once available was still on the market, and that new drugs consistently provided new

The Veterans Health Administration—the country’s only fully public, integrated healthcare system—has a lot to tell us about how a national healthcare service for the United States might operate.