Morning Edition

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RENEE MONTAGNE, HOST:

It's MORNING EDITION from NPR News. Good morning, I'm Renee Montagne.

A hearing on Capitol Hill yesterday included tears, cheers and a recording of bursts of gunfire. It was all part of a new push by Democrats on the Senate Judiciary Committee to reinstate a ban on assault weapons, a ban that expired nearly a decade ago.

NPR's David Welna was there.

Yahoo touched off a debate about the effectiveness of telecommuting when it told employees last week that they may no longer work from home. The policy change was made, according to the company's internal email, to enhance workplace collaboration.

Yahoo CEO Marissa Mayer, who happens to be a new mother, drew fierce criticism from those who say she should embrace, rather than reject, flexible work arrangements.

What exactly is lost and what's gained when people work from home?

If you've ever shot the breeze, had a heart-to-heart or bent somebody's ear — in fact, if you've ever talked at all — odds are you've used an idiom. These sometimes bizarre phrases are a staple of conversation, and more than 10,000 of them are collected in the latest edition of The American Heritage Dictionary of Idioms, which came out this week.