There is so much more to learn. Its secrets should never be locked away from us (eg by spurious claims of respect for remote ‘ancestors’). I have enormous respect for these ancient ‘Spaniards’ who were the first people into America more than 20,000 years ago – not to mention their wonderful cave art eg Cave of Forgotten Dreams: https://vimeo.com/32371643 I hope they were my ancestors. See: http://insider.si.edu/2012/03/ice-age-mariners-from-europe-were-the-first-people-to-reach-north-america/
