[Restorer]

many Lebanese "have parents who are first cousins whose parents were first cousins.

I believe this to be indisputably accurate. It is very common in Arab cultures as a way of keeping the family's money "in the family."

The result of this is inbreeding – the result of which is uneducationable (sic) people . . . and very low IQ".

Debatable at best. I don't know of any study that shows such an effect in Arab cultures, or elsewhere for that matter.

[Eurotwit]

There has been a few stories the last couple of months in Norwegian and British media about inbreeding in Pakistani families causing birth defects and complications...

No mention of IQ though...