1. al-Qaeda leadership fled Afghanistan for Pakistan before the US invasion, and the US knew it but invaded Afghanistan anyway.
2. Saddam Hussein's chemical weapons were well known to America, because American intelligence helped him acquire and target those chemical weapons against Iran in the Iraq-Iran War. Even going so far as to provide him with satellite intelligence for this purpose.
3. The "WMDs" used to justify the invasion of Iraq to the public were not chemical gasses. The US government claimed Iraq had a nuclear weapons program in advanced stages of development. This was never true and they knew it.
There are truths on both sides of the argument IMO. It's not black and white. But it's hard to seriously consider the opinions of those who haven't participated in it in any way (government, contractor, military...) and may not even have been born when these things kicked off. Media is a very biased filter.
Also the same day that the UN was presenting evidence of chemical weapons having been used by Iraq, Donald Rumsfeld was flying there to reassure Saddam Hussein about the US oil pipeline project in Iraq.
I think that the chemical weapons might have been used as an excuse for the first Gulf war by George H.W. Bush, 6 years later ??
2. Saddam Hussein's chemical weapons were well known to America, because American intelligence helped him acquire and target those chemical weapons against Iran in the Iraq-Iran War. Even going so far as to provide him with satellite intelligence for this purpose.
3. The "WMDs" used to justify the invasion of Iraq to the public were not chemical gasses. The US government claimed Iraq had a nuclear weapons program in advanced stages of development. This was never true and they knew it.