Re: The Lancet: Iraq casualty report...
650k is an exceptionally large number of dead people. Where are all of them? Even modern weapons normally leave remains.
The other part of that report that has a bad smell is from bwhip's link, they were counting deaths from heart attacks and such.
Phone surveys are the gold standard, but I see the trouble of that in a war zone, so the door-door stuff probably is about as good as you can do. Problem is, in face-face interviews, it is so friggin' easy to bias the interviewee without saying anything.