When the first trailer for Transformers: Age of Extinction debuted in March, it lead fans to the viral website TransformersAreDangerous.com. Today, we have four new viral posters featuring Optimus Prime and Bumblebee, which encourages fans to "Keep Earth Human" by reporting alien activity through the website or the phone number 855-963-8392. With exactly one month to go until director Michael Bay's highly-anticipated sequel hits theaters, stay tuned for more posters and updates from the viral website.