[anigbrowl]

You mistake my meaning. I'm talking about the context of the US government and the NSA in particular, the scope of whose powers are defined by the US constitution.

I find it surprising that you use the word "amendment". Does it mean you understand that such a proposal would have zero chance of getting passed under most governments ?

No, and I think you're reading too much into it. I'm talking about a constitutional amendment because it is the only way to put privacy on an equal constitutional footing with other governmental imperatives whose existence has been confirmed by precedent, and which would otherwise prevail in a legal challenge. As a law nerd, this strikes me as the most effective technical approach.