What is your evidence for this claim?
Lots every day, like this:
http://www.washingtonpost.com/wp-dyn/content/article/2008/07/23/AR2008072301437.html?hpid=topnews
Even though it is the WaPo, there have been too many reports from all stripes of media and corroborating evidence (like how badly treated or vets are...)
Don’t you believe it?