There is a transcription error in "Video: Pentagon's War Games All Too Real" that completely changes what the video actually says.
The Professor actually says,
He's talking about a game which models how certain policies will effect the world economy, not a terrorist attack on the World Trade Center. When he says people involved in the game died, he was obviously talking about 9/11.
Sott.net said:"I played a war game in the late nineties, involving a terrorist attack on the World Trade Center - the game was actually held in the World Trade Center - some of the people who played that game were killed in the actual event... This was a game not to predict the future, but to explore the future - to see what it was like."
The Professor actually says,
I played a White House game in the late nineties, involving a terrorist attack on Wall Street- the game was actually held in the World Trade Center- and actually several people in that game were killed in the actual event because that's where their offices were- different subject.
He's talking about a game which models how certain policies will effect the world economy, not a terrorist attack on the World Trade Center. When he says people involved in the game died, he was obviously talking about 9/11.