Has anyone considered the very very large number of precision attacks which are aborted at the last moment in order to avoid civilian loss of life? - I think not.
I'm reminded of a recent film on TV called 'The Heroes of Telmark'. Its about an attempt to prevent a critical consignment of heavy water (That's the stuff essential to atom bombs) from getting to Nazi Germany. In the film, which is based on a true story, the only way to stop the train with the heavy water is to sink the passenger ferry which is conveying it across a fjord. It had to be done. - no doubt. But the difference between Telmark and the terrorism that we see now, is that those Norwegians did all the could to reduce the civilian loss of life. In London, Bagdad and Kabul, the perpetrators fill the bombs with nails.