I'd much rather work on Facebook, which at least provides some tangible benefit to me as an occasional event organizer in exchange for wasting my time and trying to sell me crap, than this. Hell, I'd work on XKEYSCORE before working on this, and that's an extremely strong statement coming from me.
First, masses of innocent people don't usually charge at borders of countries with which they are technically at war. Second, this is not a "gun see, gun kill" technology. There are humans involved and I'm pretty sure the level of automation is directly related to the assumed probability of border being attacked. In more peaceful times, it will be almost all manual. In a full fledged war - mostly automated. You can't afford to be sentimental when your country is being invaded.