Can we spot what someone is trying to hide?

IAEA inspectors travel around the world to determine whether countries have given the Agency correct and complete information about their nuclear material and activities, as they are obliged to. They behave a bit like detectives! See how IAEA experts detect the invisible by wiping surfaces with swipes collecting traces of particles that reveal information, use surveillance cameras and seals on nuclear material and equipment, and collect and analyze satellite imagery. Come help an inspector find mock uranium particles, open and close our specialized cameras, and spot the clues from a satellite image!