"It's when you get stuck and you start to realize something's not right. It's usually because you're wrong," says Catherine Grace Katz, @Catherine_Katz on Twitter.
She is the author The Daughters of Yalta: The Churchills, Roosevelts, and Harrimans: A Story of Love and War. It's published by Houghton, Mifflin, Harcourt.
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This show is sponsored by my editing services! Head over to brendanomeara.com for show notes and to email me to start a dialogue.