While, normally you could dismiss this as political spin of a misspoken politician during a heated campaign. The fact that Giuliani is "MR. 911" and has drawn the ire of police and fireman for his lack of support of the "ground zero rescue workers", for him to casually mention that he spent as much time at ground zero as anyone seems ignorant on many levels.
When you take this statement with his obvious disregard for any factual information about 911, as per his confrontation with RonPaul, it makes me wonder about his blood "Kool- aid" level.