Middle East

There are concerns North Korea could conduct a nuclear weapons test over the weekend. And in Turkey, approval of a constitutional referendum on Sunday would grant the country's president more power.

North Korea marks its founder's birthday. Turkish voters go to the polls for a draft constitution. Ishaan Tharoor of The Washington Post joins the conversation. Kendrick Lamar releases a new album.

Egypt-born Bishop Angaelos, head of the Coptic Orthodox Church in the U.K., talks to David Greene about Sunday's attacks on Coptic Christian services in Egypt, and the security of the Coptic minority.

NPR's Ari Shapiro talks to Kim Marten, professor of political science at Barnard College and director of U.S. Russian Relations Program at Columbia, ahead of Secretary of State Rex Tillerson's visit to Moscow.