This has been submitted before, but the last discussion was 2 years ago, and the issues raised here remain relevant. I know that, because I've just run across

This has been submitted before, but the last discussion was 2 years ago, and the issues raised here remain relevant. I know that, because I've just run across them in a meeting that was, well, rather tense. It's worth knowing about this to make sure you preempt the issues when meeting with non-technical (or sometimes technical) people.