[dao-]

Not gonna get into discussing the objective worth of a human life, but I'll note that the entire population cares about their kids, not so much about their freedom to carry guns. Those caring about the latter are a vocal minority (or at least a subset, I don't have the statistics at hand).

[snorlaxle]

That's 1 of the reasons kids are usually valued more with these calculations. I'm not advocating for gun rights here. I'm not from the US and I prefer that civilians don't carry guns at all. Maybe I should have said that outright first so I don't just get down-voted and dismissed. I'm talking about freedom in a more general sense. Gun rights is not even the freedom being taken away by this type of surveillance.

[dao-]

I'm not sure what freedom in the more general sense means here. When focusing on a specific freedom, you'll often find that it's at odds with somebody else's freedom. E.g. I'd say being able to roam public spaces without fear to die is a freedom worth protecting (and it seems you agree).

Gun rights is the freedom that could be taken away (other countries have done it with great success) instead of installing body scanners, so that's why I brought it up here.