"I have know idea but I will bet that the American religions are on the ground in numbers in Africa, South America and lessor Asian countries. All that will do is make the problem far worse into the future. They'll step from indigenous voodoo to Western voodoo and their god will end up with white skin."
I can tell you that they are, in at least parts of Africa that I know, there in numbers.
It seems that Africa is regarded as a soft target for any bible / quran bashing believers hell bent on ensuring their own salvation.
