It Revea News Today

We learned that facebook have turned over copies of russian linked ads. muellers team have obtained a search warrant for that information. at one point facebook discovered these ads will be linked to a russian troll form. facebook turned over detailed information not only about the accounts that bought the ads but the way the ads were targeted at american facebook users. our media correspondent brian stelter is joining us now. does this change anything? >> it reveas revealing of what muellers te...