By that reasoning you might say the US had a huge role in 9/11 because the Bin Laden issue station failed to identify and prevent his attacks. I wouldn't say that, they did the best they could with the budget they had, and the approvals they were (or weren't) given.

I'm responding to the Europeans who want to wrap 9/11 (and further, Islamic terrorism) into a tidy "America's problem" package when it clearly isn't