scheduled until september. they say that they' are -- thei partners in germany were ready for this. we'll see how widely this spreads. facebook says it wants to turn this feature on in any parts of the world as it tens to find new fact-checking partners to work with. >> brian stelter there, and let's quickly check the weather, because millions across the central u.s. are under an ice storm warning this morning, and pedram javaheri joins us to explain how bad this will get. >> we don't see ice storm warnings too often in the forecast, but this particular storm itself, when you talk about ice storms, i think it's more serious to some extent than severe weather, such as tornados or hurricanes, because often you get preparation time, you can brace yourself, you can seek shelter. with ice storms you are crippled.