Yale University Professor John Roemer urges us to consider ethics in order to better address long term climate change. Peter Guralnick talks about Sam Phillips, who produced Elvis Presley and Johnny Cash. Legendary filmmaker D.A. Pennebaker explains what was involved in restoring his 1967 documentary about Bob Dylan, "Dont Look Back." Plus, New York Magazine senior editor Genevieve Smith discusses the magazine's investigation into the evolution of one Brooklyn block over 135 years, alongside former and present residents Ulric Haynes Jr., Lynette Lewis-Rogers and Brooke Vermillion.