Okay, I'll restate my point again...
I'll use a fake situation for illustration purposes, following so far, not a real scenario unless by coincidence, you don't need to ask where and when.
Let's pretend that the bad guys are set up in a school or hospital and are lobbing shells at U.S. positions (killing our boys), the bad guys are only there to hide behind the civilians (human shield)..........it is my opinion that the bad guys have intensionly put those people at risk and the bad guys are to blame for every scratch or harm which befalls them. Further, I think in that situation we should imediatly kill all the bad guys by the fastest and most efficient means, even though a high percentage of the human shield will also be killed......That is the only way to win a war when the situation gets that bad. IF we operated like that consistantly the people would not so easily allow themselves to be used as a shield because they would associate it with almost certain death, and it only comes because of the bad guys operations. IF we operated in WWII the way many folks want us to operate now our forces would have been obliterated and the world would be much worse for it......
IF the bad guys can be contained and can not do harm from their position, then some strung out "situation" could be played out for the optimum safety of the hostages, if the bad guys are killing us from their position then call in support and plug your ears.