Even as individual people we don't live by moral absolutes. It's a bit weird to expect our government to.

As a foreigner I don't really consider USG spying on its citizens any more or less unjustified than spying on us foreigners. Just because you are born somewhere should not dictate how your rights can be violated. People should be treated and considered the same, especially when it comes to stuff happening over the internet. I don't think anyone can honestly argue otherwise on moral grounds, and the moment you throw in "but in real world ..." the argument loses its substance.

"No one shall be subjected to arbitrary interference with his privacy, family, home or correspondence, nor to attacks upon his honour and reputation. Everyone has the right to the protection of the law against such interference or attacks."

To get somewhere as a species we need to leave behind this 'ends justifies the means' BS and start living by the principles we have all agreed to are absolute.