The Washington Post yesterday identified 26 U.S. attorneys included on firing lists compiled from February 2005 to December 2006 by D. Kyle Sampson, then Gonzales's chief of staff, and his colleagues.

Sources yesterday identified four other current or former U.S. attorneys included on a Jan. 1 list that grouped a dozen prosecutors into three tiers. They include current U.S. Attorneys Matthew Mead of Wyoming and Eric Melgren of Kansas and former prosecutors James K. Vines of Nashville and Michael G. Heavican of Nebraska.

None responded to requests for comment yesterday. The four names did not reappear on any of Sampson's other lists, according to the sources, who are familiar with the documents, which have been withheld from the public.