This week on Q&A, Whole Foods co-founder John Mackey and Harvard University psychology professor Steven Pinker discuss their books. John Mackey, author of "The Whole Story," talks about the rise of Whole Foods, the organic foods grocery store chain, and his political and intellectual development. Professor Steven Pinker talks about the role that rationality plays in a functioning society and the growth of irrationality in the United States. These interviews were recorded in Las Vegas at FreedomFest, an annual libertarian conference.

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Historian Heath Hardage Lee, author of "The Mysterious Mrs. Nixon," talks about the life and times of the former First Lady (1969-74). She says that Pat Nixon, who was voted "Most Admired Woman in the World" in 1972, was largely mis-portrayed by the press, who characterized her as being elusive and "plastic."

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Former National Institutes of Health director Dr. Francis Collins, author of "The Road to Wisdom," talks about the milestones in his career, including his work on the Human Genome Project and the COVID-19 vaccine. He also talks about his Christian faith, the importance of engaging with those we disagree with, and the current distrust of science and government in the United States.

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Julius and Ethel Rosenberg were executed in 1953 after being convicted of conspiracy to commit espionage for the Soviet Union. Their sons Michael and Robert Meeropol, nee Rosenberg, were 10 and 6 at the time. They are our guests this week. The sons talk about their parents' executions, their lives before and after, the anti-communist climate in the U.S. during the 1950s, the government's case against the Rosenbergs, and their efforts to clear their mother Ethel's record posthumously.

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James Allen, Jr., murdered Tony Sylvester in Las Vegas during a 1980 home burglary, a crime for which he was found guilty and sentenced to death. Mr. Allen, who was a teenager at the time, spent 26 years in prison, including almost 4 years on death row, before being paroled by the state of Nevada in 2008. Since being released, he has spent his time mentoring at-risk youth and working with the Nevada Coalition Against the Death Penalty. He co-wrote a book about his life titled "Not My Chair: Journey from Death Row to Freedom."

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Author and publisher Peter Osnos talks about "LBJ and McNamara," a book-length Substack serial and soon to be book about President Johnson and Secretary of Defense Robert McNamara's handling of the Vietnam War. Mr. Osnos, Saigon correspondent for the Washington Post during the war, also talks about publishing Robert McNamara's memoir "In Retrospect" and the meetings he had with McNamara in preparation for that book, which Mr. Osnos recorded.

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Fifty years ago, on August 8, 1974, President Nixon, who was under threat of impeachment, announced that he would resign from office. The following day, Vice President Gerald Ford was sworn in as the 38th president of the United States. Gerald and Betty Ford's son, Steven Ford, provides a behind-the-scenes look at that tumultuous period in American history and President Ford's term in office, including his decision to pardon Richard Nixon on September 8, 1974.

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Former congressman Patrick Kennedy (D-RI) talks about Americans who have struggled with mental illness and the stigma and silence that he says still surrounds it. He shares the stories of the people profiled in his book, "Profiles in Mental Health Courage," including himself and members of his own family.

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We sat down with Ben's Chili Bowl owner Virginia Ali and Ben's Chili Bowl official historian Bernard Demczuk to talk about the history of the Washington, DC, landmark. Opened in 1958 by Ben and Virginia Ali, Ben's Chili Bowl has been a hangout for civil rights activists, politicians, and celebrities for over 65 years. Recently, Bernard Demczuk published a book about Mrs. Ali and Ben's titled "Breaking Barriers with Chili."

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Author and actor George Takei talks about growing up in internment camps in the U.S. during World War II, following the Japanese attack on Pearl Harbor on December 7, 1941. Mr. Takei and his family were four of the 120,000 Japanese Americans to be forcibly removed from their homes and relocated to military-run camps during the war on the orders of President Franklin Roosevelt. Mr. Takei has recently published a children's book about his experiences titled "My Lost Freedom."

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