All the logical work (if not all the rhetorical work) in “Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety” is being done by the decision about what aspects of liberty are essential, and how much safety is at stake. The slogan might work as a reminder not to make foolish tradeoffs, but the real difficulty is in deciding which tradeoffs are wise and which are foolish. Once we figure that out, we don’t need the slogan to remind us; before we figure it out, the slogan doesn’t really help us.
--Eugene Volokh, "Liberty, safety, and Benjamin Franklin"
A good example of the risk of reading too much into slogans that are basically just applause lights. Also reminds me of "The Choice between Good and Bad is not a matter of saying 'Good!' It is about deciding which is which."
It strikes me that the original Franklin quote really identifies a specific case of the availability heuristic. That is, when you're focused on safety, you tend to adopt policies that increase safety, without even considering other values such as liberty.
There may also be an issue of externalities here. This is really, really common in law enforcement. For example, consider civil asset forfeiture. It is an additional legal tool that enables police to catch and punish more criminals, more easily. That it also harms a lot of innocent people is simply not considered because their is no penalty to the police for doing so. All the cost is borne by people who are irrelevant to them.
Another month, another rationality quotes thread. The rules are: