Itachi remembers

It was both disappointing and frustrating, but something Yusuke said was off... "The... 'other thing'?" Itachi grunted, reaching up to pinch the bridge of his nose. Had something escaped him? No, that couldn't be... It hurt to try and think of, but something was very wrong. "Yusuke, I think we saw something we shouldn't have..." But when, and where? And what? This was killing him -- moreso than when he allowed them to be trapped in Okumura's Palace.