Well, I have to disagree also and support Mike approach and understanding of humanitarian interventiuon.
The guy in front is not a nice guy and even if it's a child, he is using deadly force in some occasions.
ROE and TOE must be looked at with a practical point of view. Being deterent is often the best first step, even in "humanitarian operations".

The main question being how much weight 10 dead US soldiers against 10 kids of 12 to 15 years old.