The UFOs have asked not to publish that they are here, humanity is not ready yet. Trump was on the verge of revealing, but the aliens in the Galactic Federation are saying: Wait, let people calm down first. They don’t want to start mass hysteria. They want to first make us sane and understanding.
They have been waiting for humanity to evolve and reach a stage where we will generally understand what space and spaceships are. There’s an agreement between the US government and the aliens. They signed a contract with us to do experiments here. They, too, are researching and trying to understand the whole fabric of the universe, and they want us as helpers. (Former Head of Israel’s Space Program: The Aliens Asked Not To Be Revealed, Humanity Not Yet Ready)