You could kiss all the blue states and cities good bye. Whatever isn't hit by the terrorist nukes will vote Republican and for Total War...
It is possible that the strong response following 9/11 is all that has held the terrorists back from implementing "Hiroshima". If they really do have nukes in our country already, they're waiting for something to give them an overwhelming advantage so as to force a surrender. As it stands, use of their Hiroshima Option will result in a smoking, radioactive ruin where Mecca currently stands.
"As it stands, use of their Hiroshima Option will result in a smoking, radioactive ruin where Mecca currently stands."
More than that. See every terrorist harboring nation reduced to ashes and 1/3 of the earth's population annihilated by our retaliation.
If they do it we should hit at least 1000 of their targets including every inch of Saudi Arabia, Pakistan and Iran as well as every Muslim inch of Indonesia.