In episode 9, Anna tries to bliss a human. She is elated that she can control humans the same way she does Visitors. Now she simply has to bliss the humans into listening to her in order to gain total control of Earth. If aliens were to come to Earth, do you imagine they would be peaceful or manipulative and treacherous like Anna, what would you do?
I think I would want to trust them and think they they were higher evolved beings here to truly help us, but I am naive and want to believe that all alien beings out there are nice. I always have had a vision of when we bring this world to the brink of destruction like we are now, some light being alien force would swoop in and say silly humans, use the sun as energy not oil. Then we would all listen and life would be grand. We all know what would really happen though, they would come in and wipe us out and say, silly human! Good Riddance.