UFOs tend to turn up during military exercises as for example during the workup of the USS Nimitz just off the coast of Southern California in 2004. UFOs also turn up during navy exercises around the Bahamas, Puerto Rico and in the Caribbean Sea. This illustrated short book takes a look at the possible connections between magnetic anomalies, UFOs, alien abductions . As to the origins, I examine the possibility that UFOs/USOs are hiding/operating beneath the Earth's vast oceans or deeper underground.