Neat information. I brought that up because I myself have 10% Caucasus DNA (and 4% Middle East) along with 48% Italy/Greece, but my ancestry is mainly Italian (mainly Sicilian and a bit of northern) with some Anglo-Irish and German in there too. Italy/Greece being together is interesting and I believe it has a lot to do with the fact that many of the Italian DNA reference samples are from southerners like Sicilians and Calabrians who genetically share more with Greeks due to ancient and Byzantine colonization. Other Italians are more Western European-looking, similar to Frenchmen, Central Euros, or northern Iberians. I have a feeling that within a year or so we'll see a division in the DNA categorization between Italy and Greece, with some Italians actually plotting in the Greece DNA category if Sicilian or Calabrian, for instance.