If America was occupied...
...I like to think that I would limit my actions to missions vs. military and police targets only.
I guarantee that there would be many Americans who would not.
I make no apologies for anyone. It is, however, very easy to sit on a moral "high horse", when you do not live in an occupied country.
About this 12-year old thing, I'm not too impressed with whether it was deliberate on the part of the soldier. I would be astonished if the Israelis have such iron control over their troops that they can prevent anyone from getting out of control.
There is way too much heat in Palestine. Too much hatred. Stuff like this will happen. Tragic, but true.