I think the risk of killing civillians needs to be weighed against the need for immediate action, the value of the target, and available alternatives. Obviously we want to avoid killing as many people as possible, but I think it's fair that it be extremely dangerous to stand next to certain people.
Perhaps the next village hosting such guests may wish to take it upon themselves to do the right thing for the village instead of the guests.
It'll be interesting to see if
Jill Carroll is on the receiving end of any restraint. Until the USA starts posting pictures of captured women on websites, there really is no comparison between our acts and those of our enemies, and efforts to blur the stark difference between our behavior and their's smacks of propaganda.