In this episode, our AI hosts explore excerpts from the 2019 IEEE webcast "Introduction to Terahertz Technology and Applications," presented by Peter H Siegel. We cover the history of terahertz, its frequency range, and key applications like radio astronomy and non-destructive evaluation. But we also question the narrative that this technology is new - our host argues it’s been around for decades, with deliberate misrepresentation by experts. We also examine controversial applications like wireless body area networks and bio-surveillance, asking: what’s really hidden in the details? Tune in as we uncover the gaps between what’s presented and what might be concealed.