There are a vast number of UFO witnesses that have come forward since the 1940s. Literally hundreds of thousands, but those reports are typically aerial objects rather than submersible objects. The study of USOs (Unidentified Submersible Objects) is still in its infancy compared to UFO study. So, there are far fewer witnesses to gather testimony from. In this case Dr. Steven Greer interviews the witness of a USO craft while on board a Coast Guard cutter. We appreciate every serviceman or woman that comes forward with UFO or USO related events and this is no different.