Cheney's twisted (but disturbingly common) moral reasoning

In response to the release of documents describing our government's interrogation practices, former Vice-President Cheney has asked the government to release documents that "lay out what we learned through the interrogation process and what the consequences were for the country."  Why exactly should the fruits of torture be relevant to our evaluation of torture's acceptability?  Would Cheney want to know the medical fruits of embryonic stem cell research or the (purported) sociological fruits of abortion on demand before condeming those practices?