In the Blender

The 2000 U.S. census was the first to give Americans the option to check more than one box for race. Nearly 7 million people declared themselves to be multiracial, a number that's expected to shoot up in the 2010 count.

In the book Blended Nation, the husband & wife tean of photographer Mike Tauber and producer Pamela Singh combine portraits of mixed-race Americans with stories of living beyond the sometimes rigid notions of race... Americans' ideas of racial identity are in for a challenge.

Audio: NPR's Weekend Edition Sunday, . Host: Liane Hansen.