Italy searches for survivors after a devastating earthquake. Turkey escalates its role in the fight against ISIS. And Colombia and the FARC rebels sign a peace treaty ending a half-century-long guerrilla war. A panel of journalists joins guest host Derek McGinty for analysis of the week's top international news stories.
In a new book, retired British Royal Navy commander and amateur historian Gavin Menzies asserts that the Chinese discovered America 70 years before Columbus. Diane talks with him about his research and the controversy surrounding the publication of his book.
- Gavin Menzies author, retired British Royal Navy commander, and amateur historian
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