As I sadly must repeat (for how many years now) that the military is trained to use lethal force as a deterrent. Police are not trained in this fashion (though that is changing swiftly for the worse). We've seen this on the border before, we've seen it in the policing of Iraq.
People have died. People will die. Because we perceive them as "other", noone will raise their voice with the vehemence required, I suspect. Public opinion will only move when the first child is killed - or will they? It will have brown skin. "Other."