Amanpour: Kazuo Ishiguro, Candace Johnson and Tim Ryan

Nobel prize-winning novelist Kazuo Ishiguro joins Christiane Amanpour to discuss his new book, "Klara and the Sun" that asks what it means to be human. Candace Johnson, President and CEO of Roswell Park Comprehensive Cancer Center, talks about the possible capabilities of Cuba's biotech field now that the country has developed its own covid vaccine. Our Michel Martin talks to Democratic Congressman Tim Ryan about the challenges ahead in the Senate for President Biden's $1.9 trillion stimulus package.

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