Apparently, one or more governments had foreknowledge of 9/11, as discussed by Senator Bob Graham, and analyzed here.

Could he mean someone in those governments, but not everyone? For instance, a security service who failed to inform anyone else in the government?

Could he be referring to Iraq or Afghanistan, and, if so, why haven't we been told that a million times?

Perhaps we're trying to protect our sources. Or perhaps, as the article suggests, the truth is too hot to handle. Could it be Israel, Saudi Arabia, Pakistan?

And, why couldn't it be lots of people? Apparently, Afghan immigrants in NYC knew at least a week in advance, as you'll recall if you remember the story of the high school student who pointed out the window of his school and said those towers won't be there next week.

If Israel knew, why wouldn't they score points and tell us? Perhaps they wanted us to respond as we're doing now, and invade Iraq and other Israel enemies. If, as one of the links in that article points out, the Israelis were following the hijackers 24/7, then they no doubt had a very good idea of what they were up to.

Then, there's this story:

Odigo, the instant messaging service, says that two of its workers received messages two hours before the Twin Towers attack on September 11 predicting the attack would happen