. >> brooke limestone. ms. gladstone discusses her book, the trouble with reality. she looks at what constitutes reality today and how that criteria has changed over the years. >> i set up at the beginning of the book, our biological wiring. i wanted to show how we have involved a culture that was designed to validate us and not to challenge us. certainly not to contradict us. he gave us the illusion that our realities were watertight when really they were riddled with weak spots in places that would crunch in. >> sunday night at 80 strain on q&a. >> this weekend on c-span three, lectures in history. university of washington. professor compares the 1950s beats an to the 1960s. >> they were veterans of the great depression. the hippies for the optimistic children of the baby boom generation and the rising of the postconsumer world. >> 30 years ago oliver north appeared before the house and senate committees investigating the iran contra affair. >> american people are not to be believed by the way you are asking that question. are you intentionally deceiving the ameri