primary source for 400,000 civilain deaths in the 90's?

Hi Sebastian, I was really impressed with restrepo, and am about to start reading "war" which I think will be just as good. You've become one of my most respected journalists recently, I really liked the anthropological angle you brought to Restrepo and from what I hear in your book as well. Congrats on the nomination, 

I just saw your interview in Australia on Lateline, and was wondering where the source for the stat of 400,000 deaths in Afghanisatn in the 90's came from? I hadn't heard that statistic before and think it deserves much wider coverage in the debates about the current situation in Afghanistan. I think most people are unaware what it was like in the 80's during the Societ Invasion, let alone the civil war that followed.

I've  been able to trace it to a 2001 Scott Baldauf article in Christian Science Monitor in 2001. The same stat is attributed to Human Rights Watch in a September 2010 article in the Propagandist by Melissa Roddy.

I can't seem to find it on the HRW website after quite a bit of searching. Was wondering if you knew the source for the CSM article? Would be helpful as I like to rely on primary sources if I can.

Thanks Ben.