I expect bias in all sources (including myself), but the key thing is to be prepared to be wrong in one's assumptions, as well as being able to update one's understanding of things as new data arrives.
I agree, and that's one of the reasons that I respect Snopes. Even the few times that I've disagreed with them, the article was well sourced enough to use the article to reach contrary opinions.
I guess a system of enemies trying to debunk each other might work better than sources trying to be neutral. Enemies might work harder at finding flaws and errors.
