Power stations, water treatment plants and oil installations are all strategic targets. Everybody knows that. Hospitals, shcools, and other places like that are not strategic targets. So if the human shields were in those places, it might make the US and UK militaries a lot more careful than they otherwise might be about making any "mistakes". But if the human sheilds are placed around "strategic targets", their getting bombed by the US or the UK would certainly not be a "mistake". There's the difference.