GREENSBORO, N.C. - As you were scrolling through Facebook before the presidential election, there's a good chance one of the ads you saw was really from Russia. Authorities say almost half of Americans' Facebook feeds were targeted by a propaganda agency tied to the Kremlin. That's 146 million people exposed to foreign propaganda.

Now Facebook plans to create a new page where you can see if you liked or even shared one of those Russian ads. With Facebook writing: "It is important that people understand how foreign actors tried to sow division and mistrust using Facebook"

The new tool will be out by the end of the year in the Facebook help center.