In the first half of your question you clearly show that non-citizens outside the US aren't protected by the constitution. And the vast majority of the world are non-US citizens outside of the US. So you can pretty much spy on anybody and be consistent with this decision.
In the first half of your question you clearly show that non-citizens outside the US aren't protected by the constitution. And the vast majority of the world are non-US citizens outside of the US. So you can pretty much spy on anybody and be consistent with this decision.