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It seemed the labs were using an outdated protocol for calculating the probability of DNA matches in "mixtures"; that is, crime scene samples that contain genetic material from several people.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.