Discusted, how can any grown bloke actually feel Sexually attracted to an 8 year old? 
Before leaping on your extremely high horse .. at least read the article, or attempt to understand the "way of life" of some "other" countries.
The child has been "signed over" as a wife, but will live with her own family until puberty, there is NO sexual activity or attraction.
Now I don't agree with the way things are done .. but I, at least try, to understand these differences.
The "selling" or "signing" or "forced marriage" - you choose the words - has actually saved the lives of many many young girls.
In these societies the girl and her family provide a "dowry" to go with the the marriage .. as girls are actually demed "worthless" in themselves, and a poor family will actually murder - yes, I'm serious - girl babies to avoid the "disgrace" of not being able to "afford" a "proper" marriage.
The "signing over" of a very young girl child to a much older man is a way of not having to provide a dowry, and provides a "future" for the girl child, who, in 10 years time will move in with and look after/nurse etc, a 60 year old who is probably past it sexually. When the man dies everything will pass to any male offspring who have a duty to then "look after" the widow.
Thus the girl child actually has a reasonable life.. in comparison to destitution if she remains "unsold"
As I said .. I don't agree with the ideas, but they have been around in those religions for thousands of years.
I wonder what gives US the right to dictate to others how they should live

Take a look at any "Christmas Hostel" and think what all those folks are doing for the other 51 weeks of a year ?? Are we really such "nice" people
