Black Elk speaks of the "square boxes" his people were forced into, and Winona LaDuke of the "boxes of mints" on Native lands. As long as the government was deciding what tribal buildings should look like, Native custom and culture were bound to be boxed in--or boxed out. But in the post-1996 era of more flexible housing policies, Native peoples have assumed a key role in the design of buildings on tribal lands. The result is an architecture that...