VIDEOS: Christmas-Themed 'Senior Citizen Flash Mobs' Are Spreading

By Mark Memmott

Published December 19, 2011 at 12:25 PM EST

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Mark Memmott

Mark Memmott is NPR's supervising senior editor for Standards & Practices. In that role, he's a resource for NPR's journalists – helping them raise the right questions as they do their work and uphold the organization's standards.

See stories by Mark Memmott