The variation of opinion across the U.S. is at least as big as the variation across the planet. Nitpicking: That is impossible - besides both variations are eq

The variation of opinion across the U.S. is at least as big as the variation across the planet. Nitpicking: That is impossible - besides both variations are equally large - because the USA is a part of the planet. But I guess the variations in many countries are not much smaller than across the whole planet.