http://www.economist.com/blogs/freeexchange/2011/06/nonsensical-correlations http://www.economist.com/blogs/freeexchange/2011/06/nonsensi... There is an intere

http://www.economist.com/blogs/freeexchange/2011/06/nonsensical-correlations http://www.economist.com/blogs/freeexchange/2011/06/nonsensi... There is an interesting follow-up to this piece that you may find interesting.