Yes I do know that, however Wikipedia often quotes other sources, which you can check out. It is also collective opinion, and people can edit it, and discuss it and so on, and the article gets marked as controversial if there is a difference of opinion. It is a good starting point. For me, I don't need to research it any more, because I am convinced it is safe. Here's one example of a living proof of it: //www.curezone.org/m/profile.asp?un=Fonty