Judging a book by it's cover
"He's assuming that because the guy is brown" And therein lies the problem, because if you were to open up any of us humans, be it with a machete, an IED or on the surgeons table, you will find that we are ALL exactly the same colour on the inside. Yet the wrapper is what gets our attention and not the shared contents. Quite when humanity, as a whole, will be able to get over this apparently built-in bias towards some really quite subtle external differences is increasingly difficult to tell, but I feel sure that the primitive tribalism and deluded religious belief systems which we continue to exhibit will keep us all held back from progress for some time to come.