Interesting question. I've seen it a lot more up here, then down in Brasil (where I served my LDS mission [totally amazing place, might I add], which leads me to believe that they either don't know too much about it, or simply don't care. Me personally, I think it's probably the lack of general knowledge on the subject. On another side note--Brasil is a HUGE melting pot. I have no idea where the church leadership would even draw the line on who would be allowed to have the priesthood or not. Skin color is all over the spectrum and every shade in between. It even varies in children of the same parents quite significantly. You've already got lots of great answers, and I just wanted to give you an additional flavor or side to consider with this. On another side note, the priesthood has lots of historical precedent of being rather restricted. If I (your typical male Caucasian) had lived in the OT days, I would have been denied the Aaronic Priesthood--it was restricted to the lineage of Aaron at the time. Shifting gears completely, from what I understand, the church had been under social pressures for a long time to change it's policies on the matter. I think that if the brethren were looking for an easier time to get out, they could have picked a more socially convenient time. Anyway. I hope that was an enlightening answer. G'Night!