William Burns, the veteran U.S. diplomat and author of "The Back Channel: A Memoir of American Diplomacy" joins Christiane Amanpour to discuss President Bolsonaro of Brazil and President Trump's press conference at The White House. Author Evan Thomas talks about his book "First: Sandra Day O'Connor" and the legacy of the first woman appointed to the U.S. Supreme Court. Our Michel Martin talks to Shane Bauer, author of "American Prison" about being an undercover prison guard in Louisiana. via Knit