>> i believe radicalization is not part of islam. it's very dangerous. so i'm going to fight radicalization through a process called de-radicalization. if someone decides to be my enemy, this is his problem and he has to face the consequences. it's as simple as that. >> reporter: but the first real test for this new deal will be back in libya. just a few weeks after our prison visit, the men we'd met inside were released -- their reward for writing the recantation theorists, the part from violence to peace. >> cnn's nic robertson reporting. what lessons learned in libya could mean for america's fight against extremists. nic robertson joins us straight ahead. i've been growing algae for 35 years.