In light of the terrorist attacks today in Brussels it is important to remember two things. First, the threat of suicide bombers is uniquely troubling to governments trying to prevent attacks. Stopping someone who is alone and willing to die in order to kill others is nearly impossible. It is a devastating terror tactic, not least because it frustrates immediate revenge. There will always be people who can blow themselves up, who can walk into a public area and shoot people whom the government will not be able to stop. It is dangerous for governments and citizens to seek perfect security from attacks such as these. The second point is that terrorist attacks such as these are able to terrify people and to frustrate everyday life, but they cannot destroy a country. These are attacks of weakness, and there are a whole host of threats much more dangerous to the life of a country than suicide bombers.