This seems to be the focus of the Republican counterattack on the Senate floor right now: An ABC This Week interview:

“Durbin, During An Interview Sunday With ABC’s ‘This Week,’ Alluded To The Secret Dispute Within Congress. ‘Eventually Some Information Will Come Out,’ Durbin Told ABC. ‘But It Does Point To The Weakness In The Whole Process. It Takes A Leak To Understand That Billions Of Taxpayers’ Dollars Are Being Wasted That Could Be Spent To Make America Safer.’” (Ted Bridis, “Feds Urged To Probe Leaks On Spy Project Opposed By Levin,” The Associated Press, 12/15/04)