October 14, 2012 7:00 PM

Charles Koch relentless in pursuing his goals

Charles Koch's wife says there is much endearingly quaint about the man so many now vilify. Yet even Liz Koch's stories about him show a drive and a relentlessness that sometimes scare her. And she's suffered for some of his decisions that have demonized Charles and David Koch in American popular culture. The family now lives night and day with bodyguards.

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