The sciences of genetics have for some time become a great debunker of myths and legend but they have also underpinned other historical claims and traditions. The timing of this article therefore is very interesting and makes a cynic like me (who likes to make vikings, turks, anglo saxons et al, have an other consideration) wonder about the timing. Can my favourite hobby be used for political means? I think it may be so. Jews of the world unite? "Jews worldwide share genetic ties"