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And if that is what Feinstein meant to say, I would say its an improvement on her position, not backtracking. I do loathe her still, but the real problem--one created by design--of basing techniques on the field manual, is that it can be changed without any public oversight. In this full quote--and again, if that is actually what it is and not some spin--Feinstein is putting our legal obligations by treaty above the manual, which is the most important thing I think.
"However, my intent is to pass a law that effectively bans torture, complies with all laws and treaties, and provides a single standard across the government.”
http://thinkprogress.org/2008/12/04/feinstein-nyt-torture/