A variant reading of White's notes exists: Then later I said to Bobby — what's the line between histrionics and drama. I should have kept the blood on. but in White's own published memoir In Search of History: A Personal Adventure (1978) this is rendered "what's the line between history and drama?"
The "Camelot" interview (29 November 1963)
Context: History!... Everybody kept saying to me to put a cold towel around my head and wipe the blood off... later, I saw myself in the mirror; my whole face spattered with blood and hair... I wiped it off with Kleenex... History! … I thought, no one really wants me there. Then one second later I thought, why did I wash the blood off? I should have left it there, let them see what they've done... If I'd just had the blood and caked hair when they took the picture … Then later I said to Bobby — what's the line between history and drama? I should have kept the blood on.