You know life's become a joke when the US Department of Justice starts requiring foreign media to register as foreign agents. Will the BBC be forced to issue a disclaimer with every broadcast and web posting: "Proceed with caution – British propaganda ahead"? Don't bet the ranch on it.
Such distinctions are reserved for the current bogeyman of the moment, i.e. typically some marginal outlet with a small-to-minuscule audience, in this case RT, formerly Russia Today, and its companion web site Sputnik. Banned from advertising on Twitter, and the subject of an official investigation by both houses of Congress and a special counsel, these two relatively minor state-sponsored outlets are nonetheless credited with nearly single-handedly putting Donald Trump in the White House.