North Korea watchers haven't been getting much sleep this year.

The Kim Jong Un regime started the year with a literal bang — a nuclear test on Jan. 7, marking its fourth such test in the past decade. That was followed by a rocket launch in February, and claims that it had a miniaturized nuclear warhead.

A day after terrorist attacks in Brussels claimed by ISIS killed at least 31 people and wounded at least 270 others, police continue to search for a suspected accomplice.

The man in question, wearing a hat and light-colored jacket, was seen with two suspected suicide bombers on closed-circuit TV at the Brussels airport Tuesday morning, shortly before two explosions went off at the airport and one bomb was set off at a metro station.

The video, taken at Spring Valley High School in Columbia, S.C., went viral last fall: A school safety officer flips a desk to the floor with a girl seated in it, then flings her across the floor. The student is African-American; the officer is white.

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And we're going to hear now from someone who has spent a good bit of his career trying to combat terrorism. It's Juan Zarate. He was deputy national security adviser for combating terrorism under President George W. Bush. Good morning to you.

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Voters supporting Donald Trump and other candidates turned out in huge numbers yesterday in Arizona, Utah and Idaho, where one line into a caucus site was reportedly longer than a mile. NPR's Nathan Rott waited it out with Arizona voters last night.

Presidential candidate Donald Trump, after some delay, has named a few of his foreign policy advisers. One says he hopes that if Trump is elected, cooler heads will persuade him not to carry through on some of his promises.

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Now, the Brussels attacks came on a voting day here in the United States. NPR national political correspondent Mara Liasson is covering the primary and caucus voting in Arizona, Utah and Idaho. Hi, Mara.

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The Trump administration has released its first assessment of the impact of the president's decision to reinstate the "Mexico City policy," which cuts off U.S. aid to international groups unless they promise not to provide or promote abortion, even with non-U.S. funding sources.

The review finds that so far practically all grantees have agreed to those conditions. But opponents of the policy caution that the administation's statistics offer too incomplete a picture to draw conclusions about the policy's impact.

U.S. officials say American advisors accompanying Syrian opposition forces came under attack by government-backed troops in Deir el-Zour Province. U.S.-led coalition forces retaliated by launching airstrikes against the troops loyal to Syrian President Bashar Assad's regime, according to the Defense Department.

One Syrian rebel soldier was wounded but no U.S. forces were killed or wounded, according to NPR's Tom Bowman, who is reporting from elsewhere in Syria.

The Pyeongchang Winter Olympics' opening ceremony is Friday, but the first competitions are already under way. The U.S. curling team of Matt and Becca Hamilton led off a mixed doubles tournament by defeating a team from Russia.

There was a smattering of applause for each team as they were announced. The loudest cheers were reserved for the host South Korean team, which was also on the ice as part of the mixed-doubles tournament at the Gangneung Curling Center.

Federal prosecutors in Nevada have asked a judge to reconsider her decision to dismiss the government's case against members of the Bundy family and a close supporter.

"The government believes the Court's ruling is clearly erroneous," Elizabeth White, appellate chief for the U.S. Attorney's Office for the District of Nevada, wrote in a court filing Wednesday.

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