Wow, this is an issue that has troubled me for as long as I can remember. We had a District Overseer, Don Emshoff, who gave a terrible talk illustrating God's love for mankind. It was terrible because of the content. When he was finished, I told my husband that there is no way, I would do what he implied was the only right thing to do. This is a synopsis of the story.
"A man was a bridgetender, for a train bridge. It opened to allow boats to go through. A train was coming so he went to close the gap, and the lever wouldn't lock. The only way he could keep it closed so the train with 200-300 passengers would cross safely, was to hold it manually in the locked position. Just as the train was approaching, he sees his little two year old son, begin to toddle across the bridge towards him. To save his son, he has to let go of the lever and run to save him, but if he does that he will 'kill' the people on the train. So, he makes the decision to hold the lever in place and witnesses his little boy being crushed by the train, and falling, broken, and bleeding into the ravine."
I was sickened by that, and thought the man was deranged. At the time, we had a two year old, and there is NO WAY I would sacrifice his life for strangers. Don't even get me started on Abraham sacrificing Isaac.
Anyway, just thought I would share that little tidbit.