It wasn't just the right who criticized this study.
Iraq Body Count had some serious questions about it as well (I think IBCs numbers are a bit suspect as well, but their methodology is much sounder and reasonably transparent). I won't bother repeating the criticisms they and others have made of the Lancet studies (read the full IBC report for starters; the above link starts with the summary).
I will also add that this is the second time the Lancet has released a study just prior to a US election which purports to show a much higher number of Iraqi casualties than anyone previously thought. Once might be a coincidence, but twice? Unfortunately, this creates an
appearance (at the very least) of a political agenda and I think scientists with political agendas invite and deserve additional skepticism on that basis alone.
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