The stakes have been raised by the Chair of the Senate Judiciary Committee.  Senator Leahy believes the Attorney General gave testimony to his committee that doesn't match the facts.  Gonzales either has to change his testimony -- or face a perjury inquiry:

[Senate Judiciary Chair Patrick] Leahy (D-Vt.) told reporters he is giving Gonzales until late next week to revise his testimony about the surveillance program or he will ask Justice Department Inspector General Glenn A. Fine to conduct a perjury inquiry: "I'll ask the inspector general to determine who's telling the truth."

Justice Department spokesman Brian Roehrkasse said yesterday that Gonzales "stands by his testimony," and that "the disagreement . . . was not about the particular intelligence activity that has been publicly described by the president. It was about other highly classified intelligence activities."

DNI spokesman Ross Feinstein referred questions to the Justice Department.

The dispute represents the latest political difficulty for Gonzales, who endured a four-hour grilling from Leahy's committee on Tuesday and has been under fire all year for his handling of the firings of nine U.S. attorneys last year. The panel's members openly attacked Gonzales's credibility on a variety of matters.