This podcast from Transport Security International Magazine explains the evolution of airport X-ray scanners, highlighting the significant advances made through the introduction of computed tomography (CT) and artificial intelligence (AI). The podcast details how CT technology, initially used for medical imaging, has revolutionised airport security by creating highly detailed 3D images of baggage. AI and machine learning, in particular, are transforming these scanners, allowing for faster and more accurate detection of prohibited items by analysing large datasets and identifying patterns. The podcast concludes by discussing the importance of open architecture systems for data sharing and the continued need for human expertise in conjunction with these advanced technologies.