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Now Playing: First Couples' Thanksgiving Message
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Now Playing: First Lady on Fight Against Obesity
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Now Playing: Obama Share Thanksgiving Traditions
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Now Playing: Waitresses talk about on-the-job sexual harassment
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Now Playing: Female delivery worker says former supervisor bullied her for years
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Now Playing: Female truckers navigate male-dominated industry
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Now Playing: Hotel housekeepers use panic buttons to call for help: Part 4
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Now Playing: Seeking solutions in the #MeToo Movement: Part 5
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Now Playing: What's next for these female workers who have spoken out: Part 6
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Now Playing: James Comey Part 6: Comey on a Trump impeachment
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Now Playing: James Comey Part 5: Are there Trump tapes?
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Now Playing: James Comey Part 4: Discussing Michael Flynn
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Now Playing: James Comey Part 3: Trump asks for 'honest loyalty'
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Now Playing: James Comey Part 2: The Hillary Clinton email investigation
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Now Playing: James Comey Part 1: Telling Trump about the 'dossier'
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Now Playing: Comey says his assumption Clinton would win was 'a factor' in email investigation
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Now Playing: US and allies launch attacks on Syria
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Now Playing: Iran, Russia should not associate with mass murder of innocent people: Trump
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Now Playing: Pentagon officials remark on strikes in Syria
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Now Playing: Strikes will establish a strong deterrent of chemical weapons: Trump