So then the obvious questions are:
What is the most likely means of what terrorists could have smuggled in this country and the most likely form of dispersal available to them.
And what type of damage does a suitcase nuke do? Would you still get the same visuals?
Re- the nukes. I believe from what I've read that the AQ "nukes" are all about in the range of a one kiloton weapon. Reportedly, OBL obtained several Paki nukes from 2 rogue scientists connected with Khan.
He also obtained non-working suitcase weapons from former states of the Soviet Union- and paid scientists from Russia, Pakistan and even China to bring the weapons back into working order. Reportedly the Chinese provided the titrium (sp?) triggers needed for the nukes.
So I'm guessing we would be looking at- generally- a one kiloton size weapon.
You would definitely get the visuals depicted in the images.