As you say, mbga9pgf, the article shows entirely muddled thinking. How does a mandatory avoidance area, which, in this case, is designed to prevent the accidental collision of an aircraft with a nuclear installation, have any bearing on a potential terrorist act? Such avoidance regulations rely on aircrew adhering to them and, as we are all too aware, aircraft hijackers have an annoying habit of ignoring the finer points of flying regulations.
The only way to stop a terrorist ploughing an aircraft into a nuclear power station, a tower block or any other type of structure, is to prevent the aircraft being hijacked in the first place. You don't have to be scientist (new or old) to figure that one out.