If that comes into the equation,it indicates that Al-Queada had nothing to do with 9/11.The Iraqi training facility was used by ideological enemies of Osama like Hezbollah(whose leader constantly refers to him as as 'vain' and 'out for his own interests not islams'),who Saddam was famous for funding.The Iraqi intelligience agent who exposed the facility said that Osama had zero to do with 9/11 for this very fact.I lean towards the FBI/CIA/White House belief Iraq had no connection whatsoever to 9/11.This whole issue has nothing to do with why it was invaded and any attempt to connect Saddam to 9/11 implies the overthrow of the Taliban(in favor of the Northern Alliance who were much more likely to have been trained at said Iraqi camps),was unjustified.Let's also not forget that Osama and his hordes were the first to offer their services to the Saudi government to drive Saddam out of Kuwait back in Gulf 1(him being rejected in favor of Americans really bruised the ego and started off the whole anti-Saudi/American alliance stance).
Osama had been one of the biggest threats to Baathists for years.I'm not discounting that Saddam did fund terrorism,ALOT of it,but it was predominantly in Lebanon and Israel.If evidence is discovered that he did in fact have a hand in 9/11,then it will spell big problems for the Bush Admin.
It is about as likely to believe Saddam and Osama were in on it together as much as its likely to believe the IRA and Unionists are in on it together.Both terrorists,but each others enemies more than anyone elses.However,taken in seperate contexts,overthrowing both the Taliban and Saddam were justified.