This podcast from Transport Security International Magazine argues that the rail, maritime, and mass transport industries can learn valuable security lessons from the aviation industry, particularly in the realm of behavioural analysis. The author, Philip Baum, asserts that despite technological advancements, human observation and assessment of behaviour remain crucial in identifying potential threats. He criticises the reliance on technology alone and advocates for a more proactive security culture that encourages staff to report suspicious behaviour and take appropriate action. Baum stresses the importance of training, empowering staff to make informed decisions, and moving away from tick-box practices that can undermine the effectiveness of security measures. He highlights the Manchester Arena bombing inquiry as an example of how failing to address suspicious behaviour can have dire consequences. Ultimately, the author posits that by embracing a holistic approach to security, incorporating both human observation and technology, transport industries can create a more effective and resilient security system.