Riffing on mass incarceration

After an amazing afternoon discussing miscarriages of justice in balmy Cambridge, I see that a number of folks have followed up this post about mass incarceration with interesting insights.  In addition to some thoughtful comments to the original post, over at the WSJ Law Blog there is introspection here about whether white-collar sentences are too long.  Also, the Ninth Circuit Blog here returns here to lamenting "the Bureau of Prisons policy of shorting federal prisoners of seven days a year of good time credit."