This week, leading geneticist Professor Steve Jones, of University College London, warned that ‘inbreeding’ in Islamic communities was threatening the health of generations of children.

http://www.dailymail.co.uk/news/article-1394119/Its-time-confront-taboo-First-cousin-marriages-Muslim-communities-putting-hundreds-children-risk.html

Wing Dings. Could it be one of the reasons that breeds the suicide bombers.?!

If it is, then, I don't want to discuss this in an open forum. They will get the wind of the situation. That also makes some sense, why the Middle East is a tinder box.

FH.

Yes, its medically proven... Reverse Heterosis..

Setting aside the ethical side, it is evident from the medical sciences that practice can yield products with more genetic disorders than normal population.
I am not sure how prevalent that practice is in today's modern world but is is time for those communities to give a serious thought on this.