Many prisons in America are privately run, and wardens, making $40,000/year per inmate, have reasons to keep people in – the inmates are in a sense (unwilling) customers. So when they write that “this pattern of results raises the possibility that brain activity in regions such as the ACC, elicited by a simple experimental task, may lend incremental utility to existing behavioral risk factors in the ability to predict rearrest,” one worries about how, exactly, this information might be used.