@CNN: Twitter left hundreds of Russian propaganda videos, with millions of views, on its video platform Vine for months after it should have known the videos were posted by a Kremlin-linked troll group https://t.co/vWWwHmoiEH https://t.co/pwlcWePKKz

@CNN: Twitter left hundreds of Russian propaganda videos, with millions of views, on its video platform Vine for months after it should have known the videos were posted by a Kremlin-linked troll group https://t.co/vWWwHmoiEH https://t.co/pwlcWePKKz