WASHINGTON -- The Justice Department signaled to the White House this week that the nation's top three law enforcement officials would resign or face firing rather than return documents seized from a Democratic congressman's office in a bribery investigation, administration sources said. The possibility of resignations by Attorney General Alberto Gonzales; his deputy, Paul McNulty; and FBI Director Robert Mueller was communicated to the White House by several Justice officials in tense negotiations over the fate of the materials taken from Rep. William Jefferson's office, according to the sources. They spoke on the condition of anonymity because of the issue's...