If crime is going down, you shouldn't be increasing resources for crime prevention. Or you should be taking note of what has worked and concentrate the crime-prevention methods on policies that have a track record of success.

The reason the United States is not so likely to invade Iran is precisely because of the lessons learned from Iraq. And conversely, the Iranian push towards nuclear capability is calculated to deter invasions like the kind deposing Saddam Husain.

We really are creatures of a violent world, biologically speaking - watching violence and learning about it is one of our cognitive drives.

Steven Pinker Quotes