I came to write that facebook is just a carrier, and that people can lie to the masses via a printer, or a radio, or any of a million web outlets or non-FB soci

I came to write that facebook is just a carrier, and that people can lie to the masses via a printer, or a radio, or any of a million web outlets or non-FB social networks. But I was wrong, facebook doesn't just post what you say, they choose what you see. So it's not necessarily that you're seeing stuff that people said of their own volition, it's that perhaps facebook is _choosing_ not to show you contradictory claims because it would make you use facebook less, and cost them money. So then perhaps yes, some kind of regulation about what kind of choices facebook is allowed to make when choosing what will be shown to whom, and some oversight that that actually happens. Still, though, it scares me to try legislating speech, since legislation is easy to pass and hard to repeal; hard to get right, and not debated long enough by smart enough people hardly ever.