Just like the Muslim world's enslavement and constant aggression against Christian and European people came back to bite it.
???
Are you living on some foreign planet?
The US terrorist attack of the Iraqi people was based on nothing but lies. It had no justifiable cause.
It was an imperialist attack of a weak nation in an attempt to control it's resources.
And ISIS rose out of the ashes of that brutal and insane attack.
We are dealing with the blowback of massive US aggression and terrorism. And of course decades of US fostering of Islamic fundamentalism in an attempt to counter Arab nationalism.
And the US will likely suffer a lot more blowback since so many are so blind to the root causes of it.