To show the efficacy of putting policy prescriptions into practice, MI will often collaborate with cities and public officials. Following the 9/11 terrorist attacks, at the NYPD’s request we launched a policy division to advise the police on the development of a counterterrorism strategy. In Newark, New Jersey, the Institute partnered with Mayor Cory Booker to implement a new approach to prisoner reentry, based on the principle of connecting ex-offenders with paid work immediately upon release. And in 2012–13, MI experts were embedded in the Detroit Police Department, helping the Motor City implement Broken Windows policing (a long-standing focus of the Institute) in order to get a handle on its crime problem.