[jajko]

Also, genes pass down to your kids, compared to fingerprints which are just cca unique for each of us. What a terrible thing to (unknowingly) do to them. Gattaca and all.

When I first heard about them and similar services, the potential for abuse was the first thing that came to my mind. I am not paranoid in any way and those were easy times compared to now. Still, I prefer not knowing my ancestry than this.

And ancestry for Europeans is not such a hot topic, you just need to look at a bit of history of continent and its civilizations and get the idea.