“The recent use of scientific (or pseudo-scientific) methodologies to examine migration has added an extra, alarming dimension. DNA, whether ‘ancient’ (from excavated material) or ‘modern’ samples (from living populations), is being used to track migration. The danger, barely addressed (at best dismissed as a purely ‘ideological’ objection), is of reducing ethnicity to biology and thus to something close to the nineteenth- century idea of race, at the basis of the ‘nation state’.”