He is also confirming that he not only talked to Harlow, but to Tenent as well. At least that is the way I read it. I didn't realize he had mentioned Tenent before in any of his writings about this subject.
I have previously said that I never would have written those sentences if Harlow, then-CIA Director George Tenet or anybody else from the Agency had told me that Valerie Plame Wilson's disclosure would endanger herself or anybody
Novak just says that Harlow was Tenet's then-CIA Director
He didn't say that he talked to Tenet. He said he didn't hear from him.