Mark and Glenn start off by recalling Harvard’s Kennedy School in 1980s, where they both came to know James Q. Wilson. Mark says liberals got the crime question wrong, while Glenn urges that “crime” be placed in broad political perspective. Glenn asks why the US imprisons so many—could the answer be American democracy? Glenn and Mark argue the merits of the new parole supervision policy reflected in Project HOPE. They close with a heated debate on crime, human nature, and Wilson’s legacy.