I would like to see a survey of which Muslim nations and cultures have the most inbreeding. Mostly done via first cousin marriage as far as I know. Turks...probably not so much. Pakistanis very heavy. Muslims in India too probably. Palestinians.... Israeli reports their hospitals get lots of Palestinian children with birth defects from inbreeding. Stanley Kurtz of National Review wrote the first material I saw on this Muzz inbreeding
http://hbdchick.wordpress.com/2011/02/15/cousin-marriage-conundrum-addendum/
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