And what if Saddam did attack us and it came out that Putin had warned us? We would have been demanding Bush's head on a platter for ignoring the warning.
If Saddam was planning terrorist attacks and the Russians showed us evidence it can't just be ignored. We never used this as a reason to go to war. But there IS evidence that Saddam was planning attacks because I have given the links several times. Whether the information is true or not does not change the fact that there is evidence.