George Soros - Based on the information available at the time of the invasion of Iraq, was it justified?

"Perhaps the greatest blunder in American history – the invasion and occupation of Iraq."

Reconsidering the war on terror
By George Soros (for Safe Democracy)

The invasion of Afghanistan was justified. That is where Bin Laden lived and Al Qaeda has its training camps. But the invasion of Iraq, as we now all know, can not be similarly justified. 

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For 18 months after 9/11, any criticism of the President’s policies was considered unpatriotic. It was this suspension of the critical process that allowed President Bush to commit what is perhaps the greatest blunder in American history – the invasion and occupation of Iraq.