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 Brightest Day, in Blackest Night, no evil shall escape my sight. Let those who worship evil's might, beware my power: Green Lantern's light!"