A fantastically touching interview worth watching about early-onset Alzheimer’s disease. Award-winning CBS News Correspondent Barry Petersen talks about his book, Jan’s Story: Love lost to the long goodbye of Alzheimer’s, based on his journey with his wife Jan. Petersen talks about the changes in his wife’s personality, which started as early as 40, the reaction of family and friends when he started a new relationship after his wife was placed in a facility and his continued commitment to his wife.