Thanks for the pointer to the Noam Chomsky article. I had read it, but forgotten it.
I think you have overstated your case a little. It is true that many of the facts about this issue are only available in highly filtered form, and we do have to choose which of those filters are trustworthy. Even so, it is possible to reach some amount of certainty based on these reports and even "change sides."
It's similar to the "debate" over cigarette safety. The tobacco compaines are still telling anybody who will listen how safe their product is. Despite the spin and filtering, most people have made a decision about the safety of cigarettes without having first been on one side or the other.