Eliot Cohen, director of the Strategic Studies program, poses a question to U.S. Marine Corps Gen. Joseph F. Dunford, Jr., chairman of the Joint Chiefs of Staff, at the Johns Hopkins University School of Advanced International Studies. Sgt. James McCann/Office of the Chairman of the Joint Chiefs of Staff hide caption

The first session of the New Hampshire House on Jan. 4, 2017, in Concord. The chamber will soon consider legislation that will likely curtail the financial strength of labor unions. Elise Amendola/AP hide caption

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

A color-enhanced spiral CT image of the chest shows a large cancerous mass (in yellow) in the left upper lobe. Medical Body Scans/Science Source hide caption

Rana (Taraneh Alidoosti) and Emad's (Shahab Hosseini) marriage is shattered in The Salesman. Courtesy of Cohen Media Group hide caption

An artist's impression of Saccorhytus coronarius, a sea creature that lived 540 million years ago. Jian Han, Northwest University, China hide caption

Miguel Zenón's Típico is on Nate Chinen's list of albums to look forward to in 2017. Jimmy Katz/Courtesy of the artist hide caption