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Maybe the way to get this to change is to get the airlines to complain about it. To do this, you'll have to get them to notice, which means costing them money. I figure you'll have to ask for a knife on every flight, which will then get removed during your next screening. The airlines, perpetually short of money, will surely notice the rise in the cost of cutlery and investigate. When the finally trace the problem to you, explain you're trying to save the airline money by reusing your utensils, but the TSA keeps taking it away from you, constantly requiring you to appropriate a new knife. At that point, the easiest thing to do would be for the airlines to lean on the TSA to save their bottom line, because they obviously can't keep operating with all these unnecessary costs, and just to make sure they'll put their highly paid lobbyists on the job. After the congressional hearings on TSA confiscated butter knives, where you're called to testify, TSA will be pressured to drop the butter knife ban. But only butter knives. Cheese knives will still be prohibited.
I can't wait to read about the results in a future column.