DNA Indicates that 20 % of Iberian Population of Jewish Estraction

Interesting, but not really surprising:

Spain and Portugal have a history of fervent Catholicism, but almost a third of the population now turns out to have a non-Christian genetic heritage. About 20 percent of the current population of the Iberian Peninsula has Sephardic Jewish ancestry, and 11 percent bear Moorish DNA signatures, a team of geneticists reports.