God damn! that was a disturbing read, and sad to think that kind of stuff happen's in the world. However, the article seems to be focused on pedophilic incest, not actual reproduction of the species through incest. I still doubt the majority of middle easter people are the product of incestuous breeding, but who knows.

EDIT: I think cannabis is still prevalent in afghanistan since they taliban has been growing jungles of it to hide from infrared sensors.