Over the last decade, since the work of a shadowy government program called the Advanced Aerospace Threat Identification Program was made public in 2017, there has been growing public pressure on the US government to release its files related to aliens. At the same time, UFOs have been rebranded as Unidentified Aerial Phenomenon, or UAP.

The US has published transcripts, video clips and audio recordings about unidentified flying objects, also called unidentified anomalous phenomena.