Iran and dirty bombs

[haele]

8. Anyone who works in a hospital or science lab has access to the materials to make a dirty bomb.

The issue is not so much lingering radiation, it's the intensity of the initial blast.
Honestly - I would fear more a shipping container half full of ammonium nitrogen fertilizer with the other half rope or other flammable material.

Think Texas City explosion in 1947. One medium sized ship offloading ammonium nitrate.Thousands of buildings within a 5 mile radius flattened or damaged, over 500 known killed (of those, only a little over 300 identified), unknown number of others missing; the concussion blast was heard and felt as far away as Port Arthur, about 75 miles up the coast, damaging buildings (shattered windows, warped building frames and small stantions, pillars or lean to supports) up to 30 miles away

Ya, a portable dirty bomb would be bad; especially as the EMP would probably cause some serious local or adjacent Emergency Operations infrastructure damage; but a similar sized ammonium nitrate "bomb" filling up a standard shipping container can level an entire port city.

On edit, there recently was a small fertilizer explosion at a dock in Beruit, Lebanon - recently, damaged buildings as far as 5 miles away from the port.