Martin Kaste

Martin Kaste is a correspondent on NPR's National desk. He covers law enforcement and privacy, as well as news from the Pacific Northwest.

In addition to general assignment reporting in the U.S., Kaste has contributed to NPR News coverage of major world events, including the 2010 earthquake in Haiti and the 2011 uprising in Libya.

Kaste has reported on the government's warrant-less wiretapping practices as well as the data-collection and analysis that go on behind the scenes in social media and other new media. His privacy reporting was cited in the U.S. Supreme Court's 2012 United States v. Jones ruling concerning GPS tracking.

Before moving to the West Coast, Kaste spent five years as NPR's reporter in South America. He covered the drug wars in Colombia, the financial meltdown in Argentina, the rise of Brazilian president Luiz Inacio "Lula" da Silva, Venezuela's Hugo Chavez, and the fall of Haiti's president Jean Bertrand Aristide. Throughout this assignment, Kaste covered the overthrow of five presidents in five years.

Prior to joining NPR in 2000, Kaste was a political reporter for Minnesota Public Radio in St. Paul for seven years.

Kaste is a graduate of Carleton College, in Northfield, Minnesota.

Over the summer, the Texas Forensic Science Commission, which sets standards for physical evidence in state courts, came to an unsettling conclusion: There was something wrong with how state labs were analyzing DNA evidence.

It seemed the labs were using an outdated protocol for calculating the probability of DNA matches in "mixtures"; that is, crime scene samples that contain genetic material from several people. It may have affected thousands of cases going back to 1999.

After the mass shooting in Roseburg, Ore., last week, the national media gave a lot of attention to the fact that the local sheriff, John Hanlin, is an ardent supporter of gun rights. He'd written a letter to Vice President Joe Biden shortly after the Dec. 14, 2012, massacre of schoolchildren at Sandy Hook Elementary in Newtown, Conn., saying gun control was not the answer. In the letter, Hanlin pledged not to enforce gun regulations he believed to be unconstitutional.

What wasn't widely reported was how common views like Hanlin's have become in law enforcement.

The ambush-style murder of Sheriff Deputy Darren Goforth at a gas station in suburban Houston on Aug. 29 has added new urgency to warnings about a growing "war on cops" in America. After the arrest of the suspect, an African-American man named Shannon J. Miles, the local district attorney called for more public support for law enforcement.

The phrase "police militarization" conjures up an image of cops wrapped in Kevlar, barging into homes with semi-automatic weapons. But familiar as that image is, we don't know how common it is. There are simply no good statistics on police tactical operations in America. The federal government doesn't keep track, and neither do the states — with one exception: Utah.

When Washington state legalized recreational marijuana, people wondered if it would mean more stoned drivers on the roads. Two and a half years later, one trend is clear: Police are arresting more drivers with pot in their systems — but what's not clear yet is what that means for traffic safety.

American college campuses are increasingly patrolled by armed police officers — and it's a trend that burst into public view Wednesday, when a University of Cincinnati officer was charged with murder in the shooting death of a black motorist during a traffic stop. But this arming of college cops is causing some worries.

When prosecutor Joe Deters announced the indictment of University of Cincinnati Officer Ray Tensing on Wednesday, he had harsh words about the officer's competence, saying he should never have been a cop.

Copyright 2015 NPR. To see more, visit

Copyright 2015 NPR. To see more, visit



Copyright 2015 NPR. To see more, visit



President Obama has made incarceration reform a White House theme this week. On Monday, he commuted the sentences of 46 mostly nonviolent drug offenders; and on Tuesday, he spoke about reducing the prison population in a speech to the NAACP.

"The United States is home to 5 percent of the world's population but 25 percent of the world's prisoners," Obama said. "Think about that. Our incarceration rate is four times higher than China's."

Crime in America may be on the rise again. It's too early to talk about a national trend, but there have been troubling spikes in shootings and murders in big cities such as New York, Baltimore and Los Angeles.

Until recently, crime decreased steadily for two decades, and the national murder rate is half what it was in the early 1990s — so police departments are under pressure to crack down. But at the same time, their tactics are under more scrutiny from the public, and they have to be careful not to appear too heavy-handed.

Most people know to hang up on con artists supposedly calling from the power company or the IRS, demanding money. The problem is, there's little the police can do — even when the scammers go so far as to impersonate the police themselves.

The fake police scam, or "spoofing," has been making the rounds for the last year or so.

Cmdr. Joseph Chacon of the Austin Police Department's intelligence division says they saw a wave of these calls this spring from people claiming to be Austin police.

You know what a pain it can be storing and organizing the millions of videos you've shot on your smartphone. Now imagine you're a police officer, and you wear a body camera every day.

Police cams have suddenly become a big business. In the months since Ferguson, share prices for the camera manufacturer Taser International have doubled. But in the long run, the real money is in selling police a way to store all that video.

License plate scanners have become a fact of life. They're attached to traffic lights, on police cars — even "repo" staff use them. All those devices have created a torrent of data, raising new concerns about how it's being stored and analyzed.

Bryce Newell's laptop is filled with the comings and goings of Seattle residents. The data comes from the city's license plate scanner, acquired from the police through public disclosure requests. He plugs in a license plate number, uncovering evidence of long-forgotten errands.

This week in Washington, thousands of sworn officers gathered for National Police Week, an annual commemoration of the lives of officers who've died on the job.

This year it was hard for participants to escape the shadow of the anti-police protests of the past nine months. One of the week's events, a memorial bicycle ride, even was rerouted away from Baltimore, to make sure the nearly 2,000 officers participating in the ride wouldn't become targets.