americans don't need to know anything
dumb americans travel more than dumb non americans due to being richer
there are a lot of terminally stupid mixoid americans or multigenerational white trash
in general white americans are smarter than average though, 98 average IQ in the country and it's full of niggers and spics so to balance it the whites must be above 100. Montana or idaho have tested at 104 in one study I saw