[CodeMage]

First, you have redefined both words. We could quibble semantic details ad nauseum, but since your written English is pretty good, I suspect your overall English is good enough that you know exactly what you're doing. Even if it wasn't, the "especially by an army" bit should have been a huge hint about the spirit of the word "invade".

Second, if you want to argue the legal points of whether the surveillance is warranted, you don't need to come up with vague, hand-wavy terrorist threat scenarios. You could just state your legal argument and let some expert out there destroy it ;)

Third, an excuse of "I know this is crap, but" is not a valid excuse. It's like saying to someone, "No offense, but you're a total idiot." Just because you said "no offense", it doesn't mean they shouldn't or can't take offense. Likewise, explicitly stating that you were "pulling the numbers out of your arse" doesn't make your scenario any less ridiculous or a better fit to support your argument in any way.

As for the nitpicking about scenario A, you're welcome to argue against it as much as you want. Again, the onus to do that is on you, so knock yourself out.

Fourth, @foobarqux hit the nail on the head with his comment about restraint. One thing is to argue that "repelling an invasion" is "warranted" by the government, another is to try to classify PRISM and other such surveillance programs as "repelling an invasion" and yet another is arguing about whether the extent of those programs is "warranted" or not. I don't know the Constitution by heart and to the letter, but I'm pretty sure that there's a lot of stuff in it that, taken to extremes, will contradict other stuff in it.

And fifth, if "being blockheaded" means not allowing bullshit arguments to pass as valid just because there's strong emotion behind them -- or because their author is throwing a temper tantrum -- then I hope my cranium gets as cubical as it can.

[lupatus]

I bend no words. One of the experiences of colonialists was the Beaver Wars in which the Iroquois invaded and captured the territory of the Huron. The Iroquois would not constitute an army in the traditional sense because they were not uniformed and regimented - they were a force of irregulars, much like Al Qaeda is today. Suppose the Iroquois wanted to invade and recapture New York, that would be an invasion by a force other than an army that New York would need to repel.

And, do you spray insect REPELlent on yourself before you get bug bites or after? Protective measures also constitute repelling.

Also, I originally didn't want to argue the legality of the surveillance. I devised a hand-wavy scenario to illustrate my threat-assessment point.

Because, saying that kittens are as or more dangerous than terrorists IS blockheaded. If I'm wrong, I invite you to go down to your local SPCA and adopt a new pet terrorist.