Donald Trump stands with some of the delegates from North Dakota, who elevated him over the 1,237 needed for the GOP nomination. Charles Rex Arbogast/AP hide caption

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Meet The Unbound Delegates Who Helped Donald Trump Secure The Nomination
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TSA Administrator Peter Neffenger prepares to testify during a House Homeland Security Committee hearing on Capitol Hill. Lawmakers sought answers as to why long security lines persist at airports around the country. Mark Wilson/Getty Images hide caption

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TSA Hopes To Speed Up Screening Lines This Summer, Administrator Tells Congress
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Doug Quinn stands on the empty lot where his house used to be. Bryan Thomas for NPR hide caption

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Business Of Disaster: Insurance Firms Profited $400 Million After Sandy
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Officer Edward Nero (center) arrives at court in Baltimore on Monday. Nero has been found not guilty of multiple misdemeanor charges in the Freddie Gray case. Chip Somodevilla/Getty Images hide caption

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Baltimore Police Officer Found Not Guilty In Freddie Gray Case
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Aedes aegypti mosquito photographed through a microscope. Felipe Dana/AP hide caption

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CDC: 157 Pregnant Women In The U.S. Have Tested Positive For Zika
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A mosquito control inspector sprinkles larvicide in a storm drain in Miami Gardens, Fla., in an effort to stop the spread of Zika virus. Joe Raedle/Getty Images hide caption

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Health Departments Cut Programs While Awaiting Zika Funding
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In Search For Cures, Scientists Create Embryos That Are Both Animal And Human
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Worker Javier Alcantar tends to crops at the Monsanto Co. test field in Woodland, Calif., in 2012. Noah Berger/Bloomberg via Getty Images hide caption

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GMOs Are Safe, But Don't Always Deliver On Promises, Top Scientists Say
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Protesters gathered outside the federal courthouse in Minneapolis where three young Somali-Americans are on trial for allegedly planning to go to Syria to join the Islamic State. The demonstrators say the FBI and local law enforcement is targeting and entrapping Somali-Americans in terrorism cases. Six men have already pleaded guilty. Dina Temple-Raston / NPR hide caption

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He Was Caught Trying To Join ISIS, Now He's In Jihadi Rehab
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How Schools Around The Country Are Treating Transgender Student Rights
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In the past two years, many food companies — including candy-makers — have decided to label their products as non-GMO. Because practically all sugar beets in the U.S. are genetically modified, those food products are now using sugar derived from sugar cane. There is no genetically modified sugar cane. Tetra Images/Getty Images hide caption

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As Big Candy Ditches GMOs, Sugar Beet Farmers Hit A Sour Patch
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David Padilla with his daughter Sasha after being released a halfway house. This was his last step to returning home after nearly two decades in federal prison. Isaac Turner for NPR hide caption

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'It's Just The Beginning Now,' Says Man Freed From Serving 2 Life Sentences
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"I don't think Hillary Clinton wants to do anything in one sentence," former Obama adviser David Axelrod said. "That's the problem, right? Yana Paskova/Getty Images hide caption

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Unlike Donald Trump, Hillary Clinton Lacks A Simple, Clear Economic Message
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People in their mid-40s to mid-60s are more likely than any other group to be prescribed opioids with benzodiazepines. Both kinds of drugs can hamper breathing and mixing them is especially risky. Erwin Wodicka/iStock hide caption

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In Prince's Age Group, Risk Of Opioid Overdose Climbs
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We Found Joy: An Addict Struggles To Get Treatment
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Molecular markers show structures and cell types within a human embryo, shown here 12 days after fertilization. The epiblast, for example, appears in green. Gist Croft, Alessia Deglincerti, and Ali H. Brivanlou/The Rockefeller University hide caption

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Advance In Human Embryo Research Rekindles Ethical Debate
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A customer receives a slice of pizza from the prepared food section of the new Whole Foods Market Inc. store in downtown Los Angeles. Prepared foods sold at supermarkets, big-box and convenience stores are a bigger and bigger portion of those companies' profits. Patrick T. Fallon/Bloomberg via Getty Images hide caption

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What's For Dinner? The Options For A Fast Answer Multiply
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Elizabeth Holmes, founder and CEO of Theranos, speaks at the Fortune Global Forum in San Francisco on Nov. 2, 2015. Jeff Chiu/AP hide caption

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Biotech's Theranos Offers A Cautionary Tale For Silicon Valley
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One of a multitude of uses for the magical multitasker: blue painter's tape. Craighton Berman/Workman Publishing hide caption

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The Art Of MacGyvering For Sleep-Deprived Moms And Dads
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Tracy Smith, 38, and her children Hazel, 8, and Finley, 5, at their home in Houston. Smith is pregnant with twins and says she's a little more worried than usual about the approach of mosquito season. Carrie Feibel/Houston Public Media hide caption

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In Houston, Pregnant Women And Their Doctors Weigh Risks Of Zika
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Stacy Bannerman testifies before the House Appropriations Subcommittee on Military Quality of Life and Veterans Affairs in 2006. Tom Williams/CQ-Roll Call, Inc./Getty Images hide caption

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After Combat Stress, Violence Can Show Up At Home
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A social studies class at Campton Elementary School in Wolfe County, Ky. Elissa Nadworny/NPR hide caption

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Kentucky's Unprecedented Success In School Funding Is On The Line
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Dr. Leana Wen, Baltimore City health commissioner, visits a newly opened Safe Streets center in the Sandtown-Winchester neighborhood in West Baltimore. Emily Bogle/NPR hide caption

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Lesson Learned For Baltimore's Health Commissioner: 'I Like A Fight'
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Prince performs in New York in 1981, on tour behind his third album, Dirty Mind. Richard E. Aaron/Redferns hide caption

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'His Music Does The Talking': Manager Owen Husney On Prince's Legacy
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