Investigations Read the latest from NPR's investigative team. If you have solid tips or documents on stories we should probe, please send them to us.

Investigations

Peggy Gibson sits in her living room with her service dog, Rocky, in West Jefferson, N.C., last November. Gibson says Rocky, a diabetic alert dog, isn't able to work well in public. Mike Belleme for NPR hide caption

toggle caption
Mike Belleme for NPR

The Hope And Hype Of Diabetic Alert Dogs

  • Download
  • <iframe src="https://www.npr.org/player/embed/798481601/805397104" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Alleged Sept. 11 mastermind Khalid Sheikh Mohammed (far left) consults with his defense attorneys in the U.S. military courtroom in Guantánamo Bay, Cuba, as a man who waterboarded him, retired Air Force psychologist James Mitchell, takes the stand. Janet Hamlin Illustration hide caption

toggle caption
Janet Hamlin Illustration

Members of the Illinois Network of Centers for Independent Living (INCIL) demonstrate in front of the Bloomington-Normal Amtrak station in Illinois to demand the suspension of an Amtrak policy that led to exorbitant fees for removing train seats to accommodate riders in wheelchairs. Later on Wednesday, Amtrak announced it would suspend the policy. Courtesy of Bridget Hayman hide caption

toggle caption
Courtesy of Bridget Hayman

Amtrak Reverses Course On $25,000 Bill

  • Download
  • <iframe src="https://www.npr.org/player/embed/798694336/798738201" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A member of the station staff pushes a portable wheelchair lift along the platform at an Amtrak station in DeLand, Fla. The company says its policies for having to adjust or remove seats has changed. Education Images/Universal Images Group via Getty Images hide caption

toggle caption
Education Images/Universal Images Group via Getty Images

Amtrak Asks 2 People Who Use Wheelchairs To Pay $25,000 For A Ride

  • <iframe src="https://www.npr.org/player/embed/797355136/797469414" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Vacant rowhouses line a portion of Franklin Square, a formerly redlined neighborhood in Baltimore. New research shows many communities subjected to discriminatory housing practices in the 1930s are hotter today. Ian Morton for NPR hide caption

toggle caption
Ian Morton for NPR

Racist Housing Practices From The 1930s Linked To Hotter Neighborhoods Today

  • Download
  • <iframe src="https://www.npr.org/player/embed/795961381/796344903" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Chuck Coma in his mother's kitchen. Since his return from a federal prison in Butner, N.C., he experiences flashbacks from war and his time in jail. Peter van Agtmael/Magnum Photos hide caption

toggle caption
Peter van Agtmael/Magnum Photos

When A Prisoner Returns Home With A Brain Injury, Freedom Isn't So Free

  • Download
  • <iframe src="https://www.npr.org/player/embed/788824775/789036938" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

In this Pentagon-approved courtroom sketch, defendant Ramzi Binalshibh (center) attends his pretrial hearing along with other defendants at the U.S. military court in Guantánamo Bay, Cuba, on April 14, 2014. Also depicted are Mustafa al-Hawsawi (from right), partially cut off; Ali Abdul Aziz Ali, Ramzi Binalshibh, Walid bin Attash and Khalid Sheikh Mohammed. Janet Hamlin Illustration/AP hide caption

toggle caption
Janet Hamlin Illustration/AP

A Legacy Of Torture Is Preventing Trials At Guantánamo

  • Download
  • <iframe src="https://www.npr.org/player/embed/778944195/779208347" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An NPR investigation finds that the military court and prison at Guantánamo Bay, Cuba, have cost taxpayers billions of dollars, with billions more expected. The war court headquarters at Camp Justice, as seen through a broken window at an obsolete air hangar at the U.S. Navy base at Guantánamo Bay, Cuba, on February 28, 2015. Emily Michot//Miami Herald/Tribune News Service via Getty Images hide caption

toggle caption
Emily Michot//Miami Herald/Tribune News Service via Getty Images

Guantánamo Has Cost Billions; Whistleblower Alleges 'Gross' Waste

  • Download
  • <iframe src="https://www.npr.org/player/embed/759523615/759899492" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Sean McMinn/NPR

As Rising Heat Bakes U.S. Cities, The Poor Often Feel It Most

  • Download
  • <iframe src="https://www.npr.org/player/embed/754044732/757220164" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A tree grows beneath a power line in the Park DuValle neighborhood of Louisville, Ky. Urban environments can be especially harsh on trees. Sean McMinn/NPR hide caption

toggle caption
Sean McMinn/NPR

Trees Are Key To Fighting Urban Heat — But Cities Keep Losing Them

  • Download
  • <iframe src="https://www.npr.org/player/embed/755349748/757626267" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Jeanetta Churchill stands outside of her Baltimore row house. She says she has to keep her air running constantly in the summer in order to manage her bipolar disorder. Nora Eckert/NPR hide caption

toggle caption
Nora Eckert/NPR

How High Heat Can Impact Mental Health

  • Download
  • <iframe src="https://www.npr.org/player/embed/757034136/757424159" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A guard sits in his truck at the entrance to the Darby Coal Mine in Holmes Mill, Kentucky, on May 20, 2006 - the day an explosion in the mine killed five miners. The owners of the mine later failed to pay nearly $3 million in penalties for mine safety violations at Darby and other mines. Wade Payne/AP hide caption

toggle caption
Wade Payne/AP

A luthier assembles the rosewood sides of a guitar at C.F. Martin & Co. in Nazareth, Pa. Instrument-makers and musicians will likely be able to transport instruments containing rosewood around the world without a burdensome permit process. Jacqueline Larma/AP hide caption

toggle caption
Jacqueline Larma/AP

William Portwood, who died less than two weeks after NPR confirmed his involvement in the 1965 murder of Boston minister James Reeb, poses for a photograph in front of his home in Selma, Ala. Chip Brantley/NPR hide caption

toggle caption
Chip Brantley/NPR

NPR Identifies 4th Attacker In Civil Rights-Era Cold Case

  • Download
  • <iframe src="https://www.npr.org/player/embed/733401736/733635252" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Gary Hairston, a coal miner for 27 years, spoke at the hearing. He has been diagnosed with progressive massive fibrosis, the advanced stage of black lung disease. House Committee on Education and Labor hide caption

toggle caption
House Committee on Education and Labor

A magazine's cover line in Beijing asks, "How will Trump the businessman change the world?" on Dec. 28, 2016, days after then President-elect Donald Trump tapped outspoken China critic Peter Navarro for a top trade position. Greg Baker/AFP/Getty Images hide caption

toggle caption
Greg Baker/AFP/Getty Images

Inside The White House's Bitter Fight Over China

  • Download
  • <iframe src="https://www.npr.org/player/embed/719947020/720930029" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Top government leaders told NPR that federal agencies are years behind where they could have been if Chinese cybertheft had been openly addressed earlier. Bill Hinton Photography/Getty Images hide caption

toggle caption
Bill Hinton Photography/Getty Images

As China Hacked, U.S. Businesses Turned A Blind Eye

  • Download
  • <iframe src="https://www.npr.org/player/embed/711779130/712862564" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

West Virginia Gov. Jim Justice delivers his State of the State speech on Jan. 9 in Charleston, W.Va. Mining companies belonging to the Justice family owe millions in safety violations. Tyler Evert/AP hide caption

toggle caption
Tyler Evert/AP

A boy rides his bike through still water after a thunderstorm in the Lakewood area of East Houston, which flooded during Hurricane Harvey. Claire Harbage/NPR hide caption

toggle caption
Claire Harbage/NPR

How Federal Disaster Money Favors The Rich

  • Download
  • <iframe src="https://www.npr.org/player/embed/688786177/700512141" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

West Virginia Gov. Jim Justice delivers his annual State of the State address at the state Capitol in Charleston, W.Va., in January. Justice and his family own coal mining companies that have agreed to pay the government more than $5 million in delinquent mine safety fines, the Justice Department says. Chris Jackson/AP hide caption

toggle caption
Chris Jackson/AP