Cousin marriage
I have argued for sixteen years that Britain should stop allowing new marriages between first cousins. I firs wrote about the subject here: Time to outlaw new first cousin marriages My reason for thinking this is nothing to do with social cohesion or religion, indeed, I would argue against using these arguments to reduce the risk that people from particular communities may fear that the policy is directed against them. My argument is entirely based on the strong and increasing body of hard scientific evidence that "consanguineous marriage" between people who are to a significant degree related is a material risk to the health of the potential children of such marriages. As I wrote in 2010, sometimes new scientific knowledge means that the case against a practice which has previously been regarded as acceptable, perhaps even normal, reaches the point where society is justified in discouraging or banning that practice. This can be hugely controversial, particularly in communit...