Hard Measures - The former head of the CIA's Clandestine Service, Jose Rodriguez, talks to Lesley Stahl about the "enhanced interrogation techniques," including waterboarding, used on high-level al Qaeda detainees. The ex-spy was the man behind those techniques that some would consider torture and he defends their use for the first time. Hooked - Dr. Nora Volkow, head of the National Institute on drug abuse, uses MRI scans on the brains of addicts to show how difficult it is to just say no to drugs and other addictive behaviors, including eating.