This is a clip from the hearing held by the Oversight on Accountability committee on July 26, 2023 regarding the threat posed by Unidentified Anomalous Phenomenon (UAP). The witness gives a non-answer to the question about non-human being/technology that has harmed humans. He just says that activity that he personally witnessed was "very disturbing".

Full video is available here: https://www.youtube.com/watch?v=KQ7Dw-739VY