This issue was discussed briefly here: http://news.ycombinator.com/item?id=2002992 http://news.ycombinator.com/item?id=2002992 This Ars Technica article has a

This issue was discussed briefly here: http://news.ycombinator.com/item?id=2002992 http://news.ycombinator.com/item?id=2002992 This Ars Technica article has a much better explanation and is an easier read.