[Karunamon]

You're at least partly right, but I would argue the conspiracy types are already well acquainted with "alternative" news sources (infowars, Coast to Coast, random bloggers...).

Additionally, (and this is just a personal feeling), but something about top-down "reducing airtime from fringe views" feels very wrong. Who decides what a "fringe view" is? By that rubric, Creationism is perfectly legitimate since it's widely held.

I think we'd all be better served, morally as well as practically, by letting the loons be loons and let people make their own decisions rather then trying to explicitly control who gets airtime. Bring on the denier and let them get annihilated in a debate against someone who knows what they're talking about. This has the benefit of not invoking censorship boogeymen (which may or may not actually exist) and doesn't hand over the "we're being oppressed" card to them.