An instructor at Fort Leonard Wood, Mo., carries VX nerve agent inside a special chamber used for training in 2003. Brendan Smialowski/Getty Images hide caption

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Brendan Smialowski/Getty Images

The Two-Way

VX: The Nerve Agent Used To Kill Kim Jong Nam Is Rare And Deadly

A colorless, odorless liquid, similar in consistency to motor oil, VX kills in tiny quantities that can be absorbed through the skin. It is among the deadliest chemical weapons ever devised.

I'm Not So Sure Roy Hargrove

Nancy Roach at a conference in 2016. She's long worked as a patient's advocate and recently teamed up with scientists to help improve the design of studies, as well as to improve clinical care. Andrew Wortmann/Courtesy of Fight Colorectal Cancer hide caption

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Andrew Wortmann/Courtesy of Fight Colorectal Cancer

Advice From Patients On A Study's Design Makes For Better Science

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In late 2015, the Obama administration began checking the social media accounts of Syrian refugees seeking to come to the U.S. The practice has continued and may be expanded under the Trump administration. Dan Kitwood/Getty Images hide caption

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Dan Kitwood/Getty Images

Trump Administration Weighs Increased Scrutiny Of Refugees' Social Media

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Kate Noble speaks to voters at a listening session at Gonzales Community School in Santa Fe, N.M. She ran for a seat on the Santa Fe Public Schools Board. Megan Kamerick/KUNM hide caption

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Megan Kamerick/KUNM

Trump's Election Drives More Women To Consider Running For Office

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David Oyelowo and Rosamund Pike play real-life couple Seretse and Ruth Khama in A United Kingdom. Stanislav Honzik/Twentieth Century Fox Film Corporation hide caption

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Stanislav Honzik/Twentieth Century Fox Film Corporation

David Oyelowo On The Real 'United Kingdom' Marriage And Its Diplomatic Fallout

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An instructor at Fort Leonard Wood, Mo., carries VX nerve agent inside a special chamber used for training in 2003. Brendan Smialowski/Getty Images hide caption

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Brendan Smialowski/Getty Images

VX: The Nerve Agent Used To Kill Kim Jong Nam Is Rare And Deadly

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Trumpeter Lee Morgan and wife Helen in 1970. The couple's tragic story is the subject of the documentary I Called Him Morgan, directed by Kasper Collin. Kasper Collin Produktion AB/Courtesy of the Afro-American Newspaper Archives and Research Center hide caption

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Kasper Collin Produktion AB/Courtesy of the Afro-American Newspaper Archives and Research Center

Jazz On Film And The Problem Of The Mad Creative Genius

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Nigeria's President Muhammadu Buhari, shown here in 2015 arriving for his inauguration in Abuja, Nigeria, left for London Jan. 19 and hasn't been back since. The government insists he's fine, but speculation is rife that he may be suffering from serious health issues. Sunday Alamba/AP hide caption

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Sunday Alamba/AP

Nigerian President's Long Absence Comes Amid Major Economic Crisis

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