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Jeff Bezos wants the bottom half of earners to pay zero income tax—he says nurses making just $75K should save $12K a year

2

Indeed chief economist says we’re entering an era of ‘great mismatch’ thanks to a generational imbalance of workers

3

Apple’s Steve Wozniak says he cofounded the tech giant after 5 rejections from HP—not to ‘make money.’ For years, his paycheck was just $50
MPWMary Barra

GM CEO Mary Barra joins the Emmys’ #SmartGirlsAsk Twitter movement

Kristen Bellstrom
By
Kristen Bellstrom
Kristen Bellstrom
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Kristen Bellstrom
By
Kristen Bellstrom
Kristen Bellstrom
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September 20, 2015, 5:13 PM ET
Photograph by Ben Baker for Fortune

General Motors CEO Mary Barra, Fortune‘s Most Powerful Woman of 2015, is blossoming into a social media maven.

First, Barra joined the #ILookLikeAnEngineer tweetstorm. Then, with some encouragement from Facebook COO Sheryl Sandberg, Barra got on Facebook. Now, she’s become one of the few CEOs to join the #SmartGirlsAsk movement.

#STEM education is vital. My #SmartGirlsAsk question: If you could build or invent anything, what would it be? https://t.co/xSDLDsd9Gc

— Mary Barra (@mtbarra) September 19, 2015

The hashtag is the brainchild actor and comedian Amy Poehler, who, just in time for Sunday’s Primetime Emmy Awards, teamed up with the Television Academy to launch a social campaign designed to call attention to vapid questions usually asked of female celebs on the red carpet. Actors, directors, showrunners and fans quickly got on board, tweeting a stream of smart, provocative questions for Emmy attendees. Plenty of big names—including Shondaland honcho Shonda Rhimes, journalist Katie Couric and, yes, Hillary Clinton—have also contributed queries.

Barra’s #SmartGirlsAsk question—”If you could build or invent anything, what would it be?”—seems appropriate from the head of a Fortune 500 automaker, STEM proponent and engineer. But will it be one of the queries that makes it to the red carpet? We’ll have watch and see.

Subscribe to The Broadsheet, Fortune’s daily newsletter on the world’s most powerful women.

For more on Fortune’s 2015 Most Powerful Women list, check out this video:

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Kristen Bellstrom
By Kristen Bellstrom
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