I would ask someone to post this on LC, but no doubt banishment would quickly follow. I'll email Mr. Rowe.
Rowe's always been something of the quiet one among the three; it's interesting that he wants to debate you. Definitely choose one on one rather than three on one; they can dominate the time without seeming unfair and one can be reloading while the other's taking shots at you. Also insist on some sort of agreement on visual aids--photos/video etc. Will there be an audience? I certainly recommend against that as Looser than Words can probably summon a decent crowd. Also insist on neutral cameraman, as I suspect the NYU prof can arrange.
Hit him where he's weak--passengers, planes and cellphone/Airfone calls, for starters. Don't let him dodge the issue; Rowe does not seem sophisticated enough to elude these issues if you hammer on them, but expect him to try a quick diversion or two. Remember how Fetzer tried to talk about the hijackers every time the passengers came up?
Anticipate his (or the moderator's) questions and work out the bullet points you want to cover. Almost certainly there will be a question to both of you about how you got started doing this. Work in some humor right here if you can. If you can hit one little joke about yourself and then one about Loose Change, you'll be off to the races. Abby may be able to help you in this regard.
Avoid getting emotional towards the other debater; this almost always backfires. Treat it as an intellectual exercise, and forget about the person you're debating. That's not to say you can't express outrage, but direct it at the words and ideas, not the person. Talk at a normal pace; the usual response of somebody being on camera, stage or the radio is to try to speed it up. But also avoid pauses at the end of sentences if you have more to say, because a smart opposing debater will use that opportunity to get in a response.
Don't let him get you on side paths, like the Iraq War. Whether you agree with him or not on that issue, push it off the table and remind him that you are there to discuss 9-11 and not the aftermath. You hit the exact right note on Korey's military service, but don't let him bully you with it like he tries to in that post.
Visuals--avoid moving while you are talking; see Sander Hicks in the Smorgasbord video for a good example of why this is a bad idea. Korey will probably show up in one of those "Investigate 9-11" tee shirts, so it shouldn't be hard to outdress him.
Consider holding a mock debate beforehand to get comfortable. Filming that would be great, so you can critique your own performance afterward.
I apologize if this is all obvious stuff, but it was actually something I wanted to put down anyway for others who might be interested in doing media appearances. James and I may have some overflow here in the next month and I don't mind sharing some opportunities.