@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/kNis6rCtsf https://t.co/PsYsX7eGSe

@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/kNis6rCtsf https://t.co/PsYsX7eGSe