431 Delft; the Pacific; Survivors

A Dutch tour guide shares the charms of her historic hometown of Delft, then author Simon Winchester tells us why he believes the Pacific Rim defines our global future and details the biggest challenges facing the world's largest ocean. And NBC News correspondent Martin Fletcher explains his zeal for telling the personal stories behind the 20th-century tragedies he's covered as a reporter — but this time as a novelist.

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