The source did not comment further, but one matter that has arisen since Rove’s last testimony — counting today, he has testified five times — is the involvement of Time’s Viveca Novak in the CIA leak matter. Last October, according to her own account, Novak received a call from Rove lawyer Robert Luskin in which Luskin said he had told Fitzgerald about a conversation he, Luskin, had had with Novak. The Rove side apparently believed the Novak conversation would be exculpatory for Rove, and it led to still more investigation by the grand jury — which may be the topic of today’s testimony.