Two leaders of the U.S. House Judiciary Committee want the federal prosecutor investigating the Valeria Plame case to subpoena a personal journal of controversial White House reporter James Guckert, following Editor & Publisher's disclosure yesterday that Guckert claims he kept the journal for the past two years. "It is clear that a primary obstacle to the ... investigation is uncovering a precise chronology of when, and to whom, classified information was leaked," Rep. John Conyers (D-Mich.), one of those seeking the subpoena, told E&P. "The revelation by Editor & Publisher that Mr. Guckert kept contemporaneous records of his 'reporting' activities...