Bain writes "According to Wired News, the UK fear of terrorists using liquid explosives could be dramatically reduced by the use of some very old tech. Recent events have seen passengers forced to pack only the barest of essentials into clear plastic bags and the restriction on all liquids force even mothers with young children to have to test bottled milk to prove that it isn't a dangerous liquid." From the article: "For a machine to detect explosives in liquid or solid form, it bombards an object with energy -- such as radio waves or neutrons -- and in seconds measures the reaction, a response that differs depending on the material's chemical properties. Software in the machine is programmed to alert screeners if it detects chemical signatures known to match those of dangerous materials. A key question, though, is whether this kind of detection system can realistically block terrorists from bringing seemingly innocuous liquids past security and combining them later to deadly effect."
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