Shaming the Dead-Facedown burial

Found this over on the National Geographic site.http://news.nationalgeographic.com/news/2009/06/090623-facedown-burials.html
Interesting that the lead study author Caroline Arcini states that"shaming of the dead is most likely a deep rooted behavior in humankind."It mentions the practice occurring up into the first World War.Most likely with prisoners I would imagine?Information of this sort fascinates me.The why we are and the way we are and how many things are the same all over the world.
Here is a link to the original article in Current Archaeology http://www.archaeology.co.uk/articles/buried-face-down-prone-burials.htm customs