A State Department employee, accused of taking gifts from Chinese intelligence agents and not reporting the contacts, pleaded not guilty in a court appearance Wednesday. Susan Walsh/AP hide caption

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Susan Walsh/AP

Secretary of State Rex Tillerson has instructed consular officials to develop criteria to identify "populations warranting increased scrutiny" for visa applications. He's shown here last week in Beijing with Chinese Foreign Minister Wang Yi. Lintao Zhang/Getty Images hide caption

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Lintao Zhang/Getty Images

NASA's Orbiting Carbon Observatory-2 monitors how the climate is changing. Trump's budget would eliminate some satellites, including OCO-3, a next-generation carbon-monitoring spacecraft. NASA hide caption

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NASA

Trump's Budget Slashes Climate Change Funding

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The U.S. has begun deploying the Terminal High Altitude Aerial Defense - THAAD - an anti-missile system meant to defend South Korea against attacks from the North. The first components arrived in South Korea last week. U.S. Forces Korea hide caption

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U.S. Forces Korea

A Long List Of Challenges Awaits Rex Tillerson In Asia

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Dozens of ambassadorial jobs remain vacant, as do some 30 top jobs at State Department headquarters requiring Senate confirmation — positions from deputy secretary of state on down to regional assistant secretaries. J. Scott Applewhite/Associated Press hide caption

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J. Scott Applewhite/Associated Press

Worries Grow As Top Posts Remain Vacant At State Department

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President Donald Trump signs a bill repealing a rule passed last July that required oil, gas and mining companies to disclose payments to overseas governments. The rule was meant to promote transparency. Critics of the repeal argue it served as an important national security tool since corruption often leads to violence, instability and terrorism. Pool/Getty Images hide caption

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Pool/Getty Images

Repeal Of Anti-Corruption Rule May Hurt National Security, Critics Warn

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Longtime diplomat Daniel Fried, shown here at a meeting in Seoul in 2016, told colleagues at his retirement party on Friday he's "learned never to underestimate the possibility of change." Lee Jin-man/AP hide caption

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Lee Jin-man/AP

Secretary of State Rex Tillerson visited Germany last week and heads to Mexico this week, amid growing questions about how much influence he has in the White House. Brendan Smialowski/AP hide caption

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Brendan Smialowski/AP

Secretary Of State Rex Tillerson Keeps Low Profile Since Taking Office

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Secretary of State Rex Tillerson visits memorial wall plaques in the lobby of the State Department on Thursday. The plaques honor employees who died in the line of duty. Andrew Harnik/AP hide caption

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Andrew Harnik/AP

At the State Department, employees are expressing concern via an official dissent channel about the Trump administration's temporary visa and refugee ban. Win McNamee/Getty Images hide caption

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Win McNamee/Getty Images

At State Department, 'Dissent Channel' In High Gear With Refugee Ban Protests

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Secretary of State John Kerry attends a meeting of foreign ministers at the NATO headquarters in Brussels on Dec. 6. On Monday, Kerry issued an apology for the State Department's historical mistreatment of LGBT people. JOHN THYS/AFP/Getty Images hide caption

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JOHN THYS/AFP/Getty Images