In Little Brother, by Cory Doctorow, Marcus's father supports the actions of the police saying that Bayesian analysis is a reasonable and logical response. He believes that data mining is key to crime prevention: "'s perfectly reasonable to conduct their investigation by starting with data mining, and then following it up with legwork where a human being actually intervenes..." (Doctorow 109). Drew begins as an advocate for this tactic but when it is taken too far and used to hurt rather than help he quickly turns against it.

This passage is so interesting because it shows a crucial point to the Security vs. Privacy that is so prominent today. The idea behind this type of analysis is data mining is an instrument and not a weapon. The proper use is to help, in the case of Little Brother, police "sort through the haystack to find a needle" (Doctorow 110). However, the police quickly cross the line when they rely solely on data mining to assess every aspect of a person. They lost the human component that makes their work humane. This passage is relevant to so many other topics too. For instance, the discussion about if data mining should be allowed at colleges and universities contains many key points that are touched upon here. Bayesian analysis could be utilized as a tool to help prevent future school attacks. Data mining can be one of the most helpful resources as long as it is kept in check. Long story short, this is an issue that can be argued for ages and that can never truly been answered. It is obviously wrong to use data mining to invade the privacy of an individual, but it gets extremely complicated when it could mean the safety of the majority.