The case for a billion Americans

Americans can’t agree on anything—but can they agree on more of themselves? Matt Yglesias, a policy journalist and co-founder of Vox, argues that they can in a new book, One Billion Americans: The case for Thinking Bigger. Yglesias argues that the US has plenty of room for new people to live without compromising living standards or threatening wild spaces: even a billion-person population will leave the lower 48 states less densely populated than Germany, Italy, or the UK are today.