The Anunnaki Remnants think that they can select their own chosen ones (like their masters did) and take refuge with them in underground bunkers during the period of catastrophes. They plan to take a whole garrison of “slaves” underground. These will include soldiers, police, fire fighters, cooks, entertainers, beauticians, doctors, scientists, etc..
Tesla had been working on the technology for his Wardenclyffe Tower, when he noticed signals which were not of earthly origin and could be ruled out as being weather-related. He believed the signals were being transmitted from a civilization on Mars, so he developed a device to send signals back out to make contact.