Detecting unauthorized physical access with beans, lentils and colored rice (2021)
When flying I often lock my suitcase with a zip (the plastic strip you buckle up on its own, works one way). I got red and green zips because they are less common.<p>I do this to detect obvious attempts at opening the suitcase (to have a look what is inside, or to plant nuclear weapons for me to transport them).<p>When the suitcase is on the reception belt, I inspect the zips and if they are broken (or missing) i immediately go to the police&#x2F;customs agents for them to inspect my suitcase because I see it was tempered with.<p>It happened twice that the zips were missing. There was no problem for the agents to inspect my luggage. Nothing was found or missing, the zips were probably broken during transport (or someone had a look inside but did not find anything interesting.