On Monday, the Supreme Court ruled 7-2 that ‘sexually dangerous’ prisoners can be incarcerated beyond the terms of their prison sentence. Is this a good decision? Can the worst sex offenders be rehabilitated? Are there other ways to ‘fix’ them? What is most responsible for the apparent rise in sexual predators? And are further laws necessary? We ask Marc Klaas, founder of The Klaas Kids Foundation in honor of his daughter, Polly, who was abducted and killed in 1993.