actual source, linked by Slashdot, is the tabloid rag NY Post: https://nypost.com/2026/04/07/us-news/ghost-murmur-a-never-used-secret-tool-deployed-to-find-lost

actual source, linked by Slashdot, is the tabloid rag NY Post: https://nypost.com/2026/04/07/us-news/ghost-murmur-a-never-used-secret-tool-deployed-to-find-lost-airman-in-iran-in-daring-mission/ https://nypost.com/2026/04/07/us-news/ghost-murmur-a-never-u... an /r/AskPhysics thread from 2 weeks ago has pretty much universal doubt that the claims are legit: https://www.reddit.com/r/AskPhysics/comments/1sj7thd/is_the_cias_ghost_murmur_tech_detecting_a_human/ https://www.reddit.com/r/AskPhysics/comments/1sj7thd/is_the_...