Re: DC's New 52: Reviews and Discussion (Spoilers welcolme and likely)
Well, Nightwing leaves no doubt at all that Bruce is in denial. The Joker knows that Nightwing is Dick Grayson. There's no room for any uncertainty in this.
"In blackest day, in brightest night, beware your fears made into light. Let those who try to stop what's right, burn like my power: Sinestro's might!"