Outside of the movies, you'd not honestly expect children to go exploring in an airport's baggage handling system. Unfortunately several accidents of this type are reported every year in airports round the world, with curious children slipping away from their parents and in through the flaps of the airport's baggage system.
Not only is this extremely worrying for parents, but the machinery inside a baggage handling system could cause serious injuries to a child, and it's extremely important that the system is shut down before the child is hurt. An airport in Istanbul has actually developed a unique system for dealing with this problem via the use of thermal imaging cameras and a complex system designed to alert airport professionals of the human inside the baggage handler.
The new system consists of four FLIR A310 thermal cameras linked up in a complex network, and once these thermal cameras detect a spike in temperature (such as that emitted by a human body) causes the baggage system to shut down. The system is also complex enough to know the difference between a hot suitcase and a human's temperature heatmap, and emails are automatically sent out to security professionals to alert them of a problem as soon as it becomes apparent.