It seems that many people believe that because terrorist attacks do not account for a lot of deaths, it is not worth as much attention as it gets, since the chance of you dying from a terrorist attack is small, sort of like chance of dying in an airplane crash might be small. However, this misses an important way in which terrorist attack fatalities occur: they do not follow a gaussian distribution. http://arxiv.org/abs/physics/0502014 Instead, terrorist fatalities follow a power-law distribution, which means that the chance of an attack that kills millions of people is not as astronomically small, as would be predicted if it followed a gaussian distribution. A good example of this is to imagine that a nuclear terrorist attack was successfully launched. All it takes is a single nuclear incident to occur in order for everything that we think about our ways of life to change forever. In fact, security experts believe the probability of a successful nuclear terrorist incidence to be somewhere around 10 to 30% in the next 10 years. http://www.cbsnews.com/news/nuclear-attack-a-ticking-time-bomb-experts-warn/ http://www.nti.org/gsn/article/fbi-official-sees-100-likelihood-of-wmd-strike-on-us/ https://www.hsaj.org/articles/222 So are terrorist attacks rare and infrequent? Are we being overly sensationalistic? I would think probably not.