Petition is here: http://www.ipetitions.com/petition/fei/index.html
The above screen shot is from the pictorial essay in "Horses For Life" magazine: http://horsesforlife.com/HorsesForLIFEOnlineMagazineJune2006
That issue is worth looking at if you ride horses or watch competitions of horses on anything other than a long rein. :) Lots of biomechanics and physiology in there of interest. Far too much controversy for me to get into here. Just passing along the link for those interested in signing.