THE experience of the global COVID-19 pandemic raises a troubling question about the state of human society: Why would so many otherwise intelligent people refuse vaccines that can save their lives and help protect their friends and loved ones? The answer lies to a large extent in shame, and in the ways government officials, scientists and community leaders should and shouldn’t deploy it. No doubt, the products of science have brought great benefits to humankind. But in their pursuit of new achievements, its practitioners haven’t always comported themselves in ways that inspire universal trust......the drama around vaccines boils down as...