Karen is a host and reporter for NPR's Planet Money.


She was a producer at This American Life prior to that, and started her journalism life as a freelancer, reporting stories for Radiolab, Reply All, More Perfect, On the Media, Pop Up Magazine, Rough Translation, The Moth and others. Karen has also been a Moth story coach, editor at The Rumpus and Cowbird and taught / teaches audio documentary at Columbia, NYU and CUNY Graduate Schools of Journalism.‚Äč

Her stories blend in-depth reporting with narrative storytelling about everything from the death penalty to the world’s largest treehouse, America's first major interrogation program, an ISIS hostage rescue mission, teenage angst, and a showdown in a Utah strip mall parking lot.

Before becoming a journalist, Karen spent several years as a speechwriter, working in more than 20 countries. She managed communications for the CEO of Cisco, and later moved to India to work with Cisco's Chief Globalization Officer. After returning to the United States, she ran communications for Cisco's corporate social responsibility program and for the Skoll Foundation.