Malcolm Gladwell: Safety in the Skies - “Even as the number of terrorist acts has diminished, the number of people killed in hijackings and bombings has steadily increased. And, despite all the improvements in airport security, the percentage of terrorist hijackings foiled by airport security in the years between 1987 and 1996 was at its lowest point in thirty years. Airport-security measures have simply chased out the amateurs and left the clever and the audacious.” - touches all sorts of stuff related to human factors and general risk assessment