Thieves apparently armed with power saws, ladders, generators and other heavy equipment gouged out ancient petroglyphs etched into the volcanic stone landscape in eastern California, removing six and damaging dozens of the carvings, which are sacred to the Paiute tribe, according to a tribal member and government archaeologist. http://usnews.nbcnews.com/_news/2012...officials?lite These individuals whoever they are certainly don't have the right.
Not like you'd be able to sell them
Stuff like this goes on the blackmarket to be sold to extremely wealthy collectors. I can't imagine why anyone would take them otherwise and risk getting caught.