A UFO reporting app has logged thousands of sightings of unidentified submersible objects, aka USOs, just off U.S. coasts, according to reports. The app Enigma, which bills itself as the largest "standardized repository of anomalous sightings," received reports on over 30,000 unidentified objects since its launch in 2022. While UFO and UAP sightings are traditionally thought of as mysteries of the sky, Enigma claims to have logged 9,000 sightings within 10 miles of U.S. shorelines or major bodies of water. UFOs and UAPs have become common acronyms in news headlines as members of Congress have called for more transparency on what the government knows " and doesn't know " about unidentified anomalous phenomena. The term "UFO" was added to the world's lexicon by the U.S. Air Force in 1952, just five years after the Roswell sighting. The term "UAP," or "unidentified anomalous phenomena," is used to describe unexplainable sights in the sky, not just unidentified flying objects. Members of Congress have led a bipartisan effort to investigate and declassify government documents containing information regarding such unidentified phenomena following the testimony of UFO whistleblower David Grusch, a former Air Force and intelligence officer, before a House Oversight subcommittee in July 2023. Grusch testified the U.S. is concealing a longstanding program that retrieves and reverse engineers unidentified flying objects.