Single cells with TV and private bathroom. No bars on windows. Daily life spent between work and school. Even a cottage where inmates can spend weekends with their families. Welcome to new Halden Prison, in southern Norway, described by Time magazine as 'the most human jail in the world'. Here the philosophy is: since in Norway life sentence doesn't exist (the maximum penalty is 21 years), every inmate will go back to society. So far the model works: within two years of their release, only 20% of Norwegian prisoners end up back in jail.