USO stands for Unidentified Submerged Object: a UAP that appears to interact with water or transit between air and sea. Reports like the 2004 Nimitz “Tic Tac,” the 2013 Aguadilla thermal video, and the 1967 Shag Harbour case suggest some UAP approach, skim, plunge, and even re-emerge from the ocean. This feature explores a practical question: if such events are real, where would these craft most likely travel—and why would the ocean be the perfect cover?

USO 101: Why the Ocean Makes Sense

The sea offers stealth. It absorbs radar and light, muffles sound, and provides a vast, low-traffic volume for maneuvering. In addition, much of the U.S. and NATO sensor grid focuses on air threats, leaving gaps underwater or near the surface. Historic Navy hydrophone networks (e.g., SOSUS/IUSS) don’t cover every coastal shelf, and their data are mostly classified. In short: the ocean is a natural blind spot.