So, I chatted with them, and in the course of things brought up the Genographic Project, which aims, using genetic mutations as signposts, to maphuman migration from our origins in Africa to all the places we live today.
Case in point: On Monday, DeCode Genetics published an important genetic map--assembled by methods very different from those used to create the sequence of thehuman genome--that will make it much easier for scientists to hunt down new genes linked to disease.