According to Joshua Marshall, current US political developments confirm her thesis:
Republican Senate candidates and the right wing media generally are all too happy to stoke the fear. They seek to gain advantage over President Obama and Democrats who, once again, can be tarred as bumblers when faced with mortal perils. They would love to return to their glory days in the traumatic aftermath of 9/11 when war hawks ruled the roost.
For the media, stoking fear makes for better story lines. For good or ill, media need elections to be close contests. Turmoil and ferment, emotion and strife sell. Our trained, habitual cowardice is good for the wingers and good for business.