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The Trump administration on Sunday placed an aircraft carrier in the Caribbean and announced it would designate a Venezuelan group as a foreign terrorist organization.

The overall number of international students enrolled in U.S. colleges and universities, including those who enrolled in prior years or who are working after graduation, fell only slightly.

For decades, Washington blocked Seoul’s desire for the attack submarines over concerns about nuclear proliferation. President Trump reversed that policy last month, but left key questions unresolved.

Afghan officials are lashing out against their former allies in the Pakistan military as hostilities between the two countries intensify.

President Trump reversed himself by calling on the House of Representatives to vote for the release of files related to the convicted sex offender Jeffrey Epstein.

The administrator of the F.A.A. said that attendance among air traffic controllers had improved. New data suggested that some airlines had not been complying with the flight cuts in recent days.

The United States has carried out at least 21 strikes on boats the Trump administration accuses of smuggling drugs, killing at least 83 people.

Three-quarters of the schools in the area around the capital will be closed, although officials say the health risk from asbestos found in colored sand is low.

At a health care town hall in his swing state, Senator Ruben Gallego, Democrat of Arizona, test-drove his party’s new political pitch to an audience disappointed in the outcome of the shutdown.