U.S. News

It's been a tough spring for air travel. Long lines at security checkpoints have stretched across terminals at airports from Atlanta to Denver to San Jose.

Nearly 7,000 American Airlines passengers missed their flights during a spring break week in March owing to security backups. In New York, the operator of the region's three major airports calls the situation abysmal and is threatening to privatize the screening system. The U.S. Travel Association, an air travel group, says it's a "national crisis."

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

The Obama administration issued guidance to schools Friday, saying they must allow transgender students to use the bathroom that matches their gender identity.

The administration acknowledges this is "new terrain" for some people and says it wants to help school districts avoid running afoul of civil rights laws.

One year after an Amtrak train derailed in Philadelphia, killing 8 passengers and injuring scores of others, a key question remains unanswered: Why was the train going so fast?

U.S. immigration officials are planning to detain and deport immigrants who were part of the surge of Central Americans who crossed into the U.S. illegally over the past two years, an Immigration and Customs Enforcement spokesperson said in a statement Thursday.

NPR's John Burnett reports that immigration agents are mainly targeting young mothers with small children, and unaccompanied youths who turned 18 after they entered the U.S. He says officials will be detaining people whose "asylum claims have been rejected."

A prominent and outspoken fisheries scientist at the University of Washington is under attack from Greenpeace for not disclosing industry funding in several scientific papers stretching back to 2006.

Studies have been showing for years that this country's middle class is shrinking.

Now, the nonpartisan Pew Research Center has added another dimension to the story: Its examination of government data shows the problem is not confined to the Rust Belt or Appalachia.

In fact, the middle is shrinking from coast to coast.

Sugar, you might think, is just sugar, no matter where it comes from. But not anymore.

About half of all sugar in the U.S. comes from sugar beets, and the other half comes from sugar cane. Now, for the first time, sugar traders are treating these as two different commodities, with two different prices.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Hillary Clinton is floating a proposal to let people over the age of 50 "buy in" to Medicare, the federal government's health insurance for those 65 and older.

The Democratic presidential contender mentioned the idea earlier this week at a campaign event in Stone Ridge, Va. She was responding to a woman who said her health insurance premiums — which she bought on the individual market — rose more than $500 last year.

"What you're saying is one of the real worries that we're facing with the cost of health insurance," Clinton said. "The costs are going up in many markets."

Scientists have found a microbe that does something textbooks say is impossible: It's a complex cell that survives without mitochondria.

Mitochondria are the powerhouses inside eukaryotic cells, the type of complicated cell that makes up people, other critters and plants and fungi. All eukaryotic cells contain a nucleus and little organelles — and one of the most famous was the mitochondrion.

One aspect of the downfall of Theranos is the blood-testing company's leveraging of the Do-It-Yourself ethos to promote its product. Theranos provides consumers with a menu of more than 200 low-cost diagnostic blood tests for an array of drugs, ailments, deficiencies and diseases.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

A federal judge's ruling in Florida has brought a new development in the various government investigations of the for-profit college industry: prison time for the school's founder.

Alejandro Amor, the founder of a college called FastTrain in South Florida, was sentenced last week to eight years in federal prison for fraud.

Illinois lawmakers may soon vote to eliminate the state's statute of limitations on child sex abuse crimes.

The move comes in response to the 15-month sentence given last month to former House Speaker Dennis Hastert. Although Hastert admitted molesting teenage boys he coached decades ago, he could only be sentenced for a financial crime related to his efforts to pay one of his victims millions of dollars in hush money to cover up the crime.

Congress has passed legislation to allow the cremated remains of women who served as Women Airforce Service Pilots, or WASP, to be buried in the revered Arlington National Cemetery, a space reserved for people who have served in the U.S. armed forces.

The legislation will now go to President Obama for his signature.

A day after de facto Republican presidential nominee Donald Trump said "there's nothing to learn" from making his tax returns public before this November's elections, the billionaire is taking heat from the party's 2012 nominee over that stance.

The man who acknowledged attacking a Planned Parenthood clinic in Colorado last year is not competent to have his criminal case go forward, a judge ruled on Wednesday. Robert Lewis Dear Jr. is accused of killing three people and wounding nine others in Colorado Springs in November.

It may be too late for a man identified as a white nationalist leader to be removed from a list of Trump delegates, an official in the California secretary of state's office told NPR.

"The Trump campaign did not reach out to our office about removing William Johnson's name as a delegate until Tuesday, May 10 — which is past the statutory deadline to submit delegate lists to the Secretary of State's office," Press Secretary Sam Mahood said in a statement.

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