“In one of the more powerful scenes in the film, and you view it with great trepidation as a parent–a 5-year-old, terrified on the train. How much of that do you remember and feel?” asks Morning Joe veteran columnist Mike Barnicle of author Saroo Brierley, who joined the show to talk about the Oscar-nominated film “Lion,” adapted from his book and life story. Hear Brierley describe the harrowing experience of feeling like he was caged as a little boy and how he followed his heart and dreams to find something he longed for his whole life.