In 2012, Bruce Wood was having trouble reading documents at work and ordering food at restaurants. Four years later, at the age of 56, he was diagnosed with early-onset Alzheimer's, a diagnosis that has since led to a steady mental decline in his ability to take care of himself and recognize his closest loved ones. His wife, former federal Conservative cabinet minister Lisa Raitt, tells Steve Paikin about the struggles of taking care of her husband, and how she manages the immense grief it creates.