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.

On Valentine's Day weekend, Jonathan Hutson found himself exchanging tweets with somebody unpleasant: a Holocaust-denying anti-Semite, by the look of things.

Then Hutson looked up the person's earlier tweets. This guy was tweeting about shooting up a school. He said that he wanted to execute 30-plus grade-school kids."

So Hutson decided to draw the person out — "engage with him," as he puts it — to see if the threats were real.

Late last month, during a meeting of the St. Louis Board of Aldermen, a shoving match broke out among members of the public — some of them off-duty police officers.

The cause of the tension was a proposal to create a new civilian oversight authority for the police. Advocates of police reform like civilian oversight, but police officers say the boards are often politicized and unfair to them.

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Wearable video cameras are fast becoming standard-issue gear for American police. The cameras promise a technological answer to complaints about racial bias and excessive force.

But in fact, the beneficial effects of body cameras are not well-established yet. And the police departments that rushed to buy them are now dealing with some unintended consequences.

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The federal government is throwing the book at one of the most vocal critics of the polygraph test.

Doug Williams, a man who makes his living teaching people how to beat the test, will go on trial in January on charges of witness tampering and mail fraud. But Williams' defenders say he's being punished by a government that has become overly dependent on polygraphs.

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