He told me he worked on an SDI system that dealt with Laser Crystallization Tracking Techniques.
He said they created a system that sends out a laser into the atmosphere and the laser crystallizes the air molecules. Then, they can identify anything in range with accurate detail by a monitor. It actually forms a picture on the monitor with no camera. Kinda like ultrasound.
So, likewise, it can also be used to crystallize the air molecules and use it as a "Silver Screen" of sorts. At this point, they can project 3D imagery onto the "Silver Screen" and make it look like Jesus was returning. They can even project sound to make it seem like God is speaking to the world from on High.
"Strange Sounds" in the Sky = (I believe) Practice for the sound.
"Crop Circles" = Target practice. (Bill told me they are practicing with the 3D capabilities on a 2D canvas.)
"Spirals in the Sky" = (I believe) More Project Blue Beam practice?
This is Project Blue Beam, folks.