application of "racism." I think many are not "racist," in that they do not consider one race more or less inferior, per se.
But a person can still be biased while not racist. Someone can still feel uneasy if a black man knocks on your door or walks by you on the street, but not feel that what if the guy were white. The only reason difference, skin color.
Yoeli Childs statement on it is a great reference.