I remember how seething angry I was on 911. This time I won’t be unless it’s in a Red State. The Civil War has already started and they started it.
Almost for sure it would by NYC or DC.
Is will do a classic de-stablization move—disrupt the grid, use bombers—car bombs etc... to hit government buildings and shrines. then surround the city in a clasic seige. use guns, rockets to batter the city and green zone. First big target—the airports and hospitals. Next target the US Embassy and Government buildings. The US (or Iran or Russia) will have to punch though the IS forces to get their people out. When it falls—it will be a bloodbath like the middle ages. The capital of Iraq (or Sumer) will be in the south. A new Baghdad will be rebuilt from the ruines as the capital of the new State.