Yeah, my initial reaction is dismiss that.
The guy was living in a country that had just suffered the biggest terrorist attack in the history of the modern world. So I'll let him blow off a little steam. Maybe he had personal connections with people in NYC who lost lives/jobs/etc.?
Secondly, did new information not leak out to the public as time went on? Were not web sites built, time lines constructed, books written, and documents uncovered that led many to believe 9-11 was a huge mess?
That e-mail has little relevance. It does show that Lanny's opinion can swing, and that no matter which side of an issue he's on, he seems to be quite a radical. But I don't think it discredits him very much, if at all.
And to dig it out like that and present it to everyone...come on Cow...