[Mitchell]

Yes, there have been previous reports of this. At this link, Edward Jay Epstein says (referring to an Oct. 27, 2001, New York Times article by Patrick E. Tyler and John Tagliabue):

The Times story provided a number of new details, such as a Czech member of parliament, who had been briefed by the Czech intelligence services on this issue, said he “believed the meeting with Atta may have been captured by airport surveillance cameras.” This would imply that the meeting took place at the Prague airport.

Other reports place the meeting at a cafe at the Prague airport. There might be some confusion with an earlier Prague meeting between Atta and al-Ani, in June, 2000, which was also said to be in a cafe (I think in the city proper, not the airport).

[denydenydeny]

I think that videotape of the Atta-Al-Ani meeting will be shown to us--on the day we start bombing Iraq.

If there were a pool, my bet would be on September 11, 2002.