The reason Pelosi raised no objection to waterboarding at the time, the reason the American people (who by 2004 knew what was going on) strongly reelected the man who ordered these interrogations, is not because she and the rest of the American people suffered a years-long moral psychosis from which they have just now awoken. It is because at that time they were aware of the existing conditions — our blindness to al-Qaeda’s plans, the urgency of the threat, the magnitude of the suffering that might be caused by a second 9/11, the likelihood that the interrogation would extract intelligence that President Obama’s own director of national intelligence now tells us was indeed “high-value information” — and concluded that on balance it was a reasonable response to a terrible threat.
And they were right.
You can believe that Pelosi and the American public underwent a radical transformation from moral normality to complicity with war criminality back to normality. Or you can believe that their personalities and moral compasses have remained steady throughout the years, but changes in circumstances (threat, knowledge, imminence) alter the moral calculus attached to any interrogation technique.