It is the "cloud of radioactive dust" scenario that gives terrorists all the power. Dirty bombs carry minimal radioactivity. Strip, shower, get the hell away and you can avoid the worst. These are not like the huge mushroom cloud we inflicted on Japan.
By the way - ask any student what is the only country to use nuclear weapons. Then gently inform them it was us.
It astonishes me when I hear that certain nations can't be trusted with the bomb. LOL How many countries have nuclear capability? And who was the only one arrogant enough to use it?
I shake my head and sigh. mary