From NY Times: The National Geographic Society’s multi­mil­lion-dollar research project to collect DNA from indige­nous groups around the world in the hopes of recon­structing humanity’s ancient migra­tions has come to a stand­still on its home turf in North America. At issue is whether scien­tists who need DNA from aborig­inal popu­la­tions to fashion a window on the past are under­selling the risks to present-day donors. Geographic origin stories told by DNA can clash with long-held beliefs, threat­ening a world view some indige­nous leaders see as vital to preserving their culture. · Go to DNA gath­erers hit snag: Tribes don’t trust them →