Important new information has come from Edward Jay Epstein about Mohammed Atta’s contacts with Iraqi intelligence. The Czechs have long maintained that Atta, leader of the 9/11 hijackers in the United States, met with Ahmed al-Ani, an Iraqi intelligence official, posted to the Iraqi embassy in Prague. As Epstein now reports, Czech authorities have discovered that al-Ani’s appointment calendar shows a scheduled meeting on April 8, 2001 with a "Hamburg student."

That is exactly what the Czechs had been saying since shortly after 9/11: Atta, a long-time student at Germany’s Hamburg-Harburg Technical University, met with al-Ani on April 8, 2001. Indeed, when Atta earlier applied for a visa to visit the Czech Republic, he identified himself as a “Hamburg student.” The discovery of the notation in al-Ani’s appointment calendar about a meeting with a “Hamburg student” provides critical corroboration of the Czech claim.

Epstein also explains how Atta could have traveled to Prague at that time without the Czechs having a record of such a trip. Spanish intelligence has found evidence that two Algerians provided Atta a false passport...