Hall, who died Saturday at 89, wrote about farm work and his wife, poet Jane Kenyon, in the 1993 memoir 'Life Work.' He and Kenyon spoke to Fresh Air in 1996, and Hall was interviewed again in 2002 and 2012. Also, film critic David Edelstein reviews Debra Granik's new film 'Leave No Trace,' which is based on a true story about a veteran suffering from PTSD who lives secretly in a municipal forest with his teenage daughter.