I read that one of the reasons ISIS did this in france with at least one refugee is that they're trying to create a fractured environment for the refugees in Europe to further their recruitment efforts in the future. Makes sense. It made me think about how 9/11 was planned to lure the great Satan into the Middle East. Something that skipped my mind was that almost all were Saudi's. Al-Q may have been trying to also impact our relations with the Saudis by using almost exclusively Saudi's.
It is my hope that they pissed off enough people other than the US to get their butts in a sling. Along with their necks.