[DaUR]

That may be your adblock/noscript, but:

> This feature isn't available to everyone yet.

Really refers to the fact that Facebook is partnering with mainstream media in each individual country, and so they need time to roll this out internationally. Most countries don't even have a developed fact-checking infrastructure.

[rebuilder]

Now I'm curious - what countries do have a developed fact-checking infrastructure? For the public, I mean, so intelligence services don't qualify if they don't publish their findings ;)

[DaUR]

The US has (Politifact, Snopes, etc). Many countries just don't have well-known companies doing this.