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Four photographs showing customs officers inspecting people, vehicles and goods crossing international borders.

• First, I'd like you to look at pictures A and C and talk together about how the people being inspected might feel and why the officers need to be thorough. You have about 1 minute for this, so don't…
• Thank you. Now look at all the pictures. I'd like you to imagine that a customs agency is deciding where to invest in improved inspection systems. Talk together about security risk, volume of…