Have 600,000 Iraqis died violently since 2003?

"Further to my article of Friday on this subject. I'm afraid I mangled the statistical argument. My inadequate knowledge of the subject led me to make an argument that is incorrect. I stand by my contention that there is something fishy about this study (leaving aside the politically motivated timing of its publication, something the author has been clear about himself) yet have to admit that I have not found it, leaving me with nothing but personal prejudice upon which to stand my argument. I would also like to make clear that this subject was not "assigned" to me, the idea, research, argument and errors were all my own, as was my request for this clarification. Just in case you are wondering, being fact checked by the Pajamahaddin and being found in error does hurt and I hope that future writings will be, where necessary, so corrected."

He was saying that that is what the news sounds like, but that if 400 people a day were dying the reports would be more like "80 civilians dead after being caught in crossfire as coalition troops battle insurgents. 100 die in indiscriminate airstrike".