I am not an American, but I have one specific positive point to say about that: generally the only way to get a country to acknowledge the horror it did is to invade it and trial the leaders (Germany WWII: trial, Iraq against kurds: trial, France Vichy: nothing substantial, France colonial wars: amnesty, USSR: nothing, Yugoslavia: trial, without real invasion). In this instance, nobody is in court (if we ignore Poland), but at least there is some admission.
It is easy to forget that this is just a report and up to this point it hasn't had any real consequences yet. If this will ever lead to anything (be it criminal charges, convictions or change in policy) is still open.
I don't think it will lead to anything, not more than the 11th september 1973, or the whole Operation Condor. There is no balance of powers around the CIA.
(Page 56) Specifically, the interrogation techniques that went unreported in CIA cables included standing sleep deprivation in which a detainee's arms were shackled above his head, nudity, dietary manipulation, exposure to cold temperatures, cold showers, "rough takedowns," and, in at least two instances, the use of mock executions
Today we should be embarrassed. Next week when the news moves on to the next celebrity breakup, and nearly everyone forgets about this, that is the real shame.