America's race categories face a stress test

The next great civil rights battle may be whether America's old racial categories can keep up with its future.Why it matters: The U.S. is heading toward a more Latino, Asian, Black immigrant and multiracial future — and the rules for counting race will help decide who gets political power, civil rights protections and public resources.Zoom in: Two massive generational shifts will redefine the nation...Multiracial dominance: Multiracial Americans are on track to likely dominate the population ove...