Again, What ARE "Civilians?"

This story tells about some “civilians” (in actuality terrorists) who set off some bombs and killed a lot of people, including themselves. Nobody seems to want to criticize these “civilians” who kill other civilians. They only want to criticize US when we ACCIDENTALLY kill innocent civilians (the ones THEY put OUT IN FRONT as they attack, so we can’t HELP but kill them. ALL terrorists ARE “civilians.” None are members of ANY recognized country’s army. So why all the fuss about us “killing civilians” that they, themselves, put in danger? (Yahoo News/AP)