This is an old story, but worth remembering as we watch ancient archaeological sites being destroyed outside of North America. It happens here, too. Sadly, a few years ago several Navajo destroyed ancient rock art images of Hopi katchinas. Religious extremism is found in every culture around the world.
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=262×1219
Also, what it looked like before…