Alyssa Mastromonaco worked in the Obama White House for six exhilarating and exhausting years. She talks about running on adrenaline, planning for worst case scenarios, and wearing Snuggies on Air Force One. Her new memoir is 'Who Thought This Was a Good Idea?' Film critic Justin Chang reviews ‘A Quiet Passion.’ Merriam-Webster lexicographer Kory Stamper talks about how words (like "f-bomb") are added to the dictionary, finding the first-known use of a word, and how English continues to evolve. Her book is ‘Word by Word.’