Read other letters about this article
I'm not the first to mention this, but it would be easier to believe Kennedy if he hadn't previously written controversial articles detailing an alleged link between autism and mercury found in vaccines. One of these articles was published on Salon (for shame).
Kennedy's autism articles were sensationalist, manipulative scare-mongering, dependent on a conspiracy theory and has been completely debunked.
(e.g. http://skeptico.blogs.com/skeptico/2005/06/robert_f_kenned.html)
Why are readers willing to cancel their Salon subscriptions in order to defend RFK?