Can terrorists be rehabilitated with kindness?

NOW ON PBS partners with best-selling author and journalist Robert Lacey to investigate the surprising success of Saudi Arabia's approach to dealing with terrorists and extremists - without torture or water-boarding. Given extraordinary access to the Saudi Arabian Interior Ministry and its practices, Lacey visits terrorist rehabilitation camps that use "soft policing" tactics to be nice to the bad guys. 

The report shows the Saudis providing a private jumbo jet to bring inmates home from Guantanamo Bay, giving them a hero's welcome, then sending them to a converted holiday resort for re-education. Then, the men are set free.

Is this rehab program working, and can America trust the Saudis to protect themselves - and us - against Islamic extremism in the future?