This is just exaggerated BS. Unless the terrorist got a hold of a megaton-sized city-buster (I highly doubt they could build a thermnuclear fission weapon), the numbers would be far less than this. It would be awful, but not millions.
Still, it is my firm belief that if John Forbes Kerry is elected president, a nuclear device will be detonated in a Western City (most likely NY) within the next decade.
Regardless of who is elected, that scenario is almost guaranteed for a Russian City (Volgograd?).
Your statement (that you quoted) wasn't the only example of exaggeration. To make a bomb easily, you need enriched uranium, and that is not available all over the place. To make a plutonium bomb, you need a much more complicated device.
Maybe she's trying to sell a book.
Having studied nuclear warfare while in the military, I'd easily agree with the millions estimate for the type device described.
You're only counting blast and fire damage.
Radiation would bag a LOT of people before they could get out of the danger space. This wouldn't be a airburst by a modern clean weapon; you'd generate a s**tload of radioactive crap and spread it downwind.
True. Private individuals severely overestimate the threat from nuclear weapons. The first is the constant overexxageration of the fallout caused by nuclear weapons. The second is a misunderstanding of the different types of nuclear weapons. A megaton-scale boosted weapon is far different from a Hiroshima-scale weapon built in the third world.