Boko Haram, known for mass kidnappings, bombings, and other acts of terrorism, remains an enduring threat to northern Nigeria and the Lake Chad Basin.

South Africa in the post-apartheid period has registered steady growth, but mounting problems over inequality threaten the continent’s economic engine.

Over the past decade, the Fed kept interest rates low while it deployed trillions of dollars in stimulus and expanded its regulatory oversight. Now, the central bank is back in the spotlight for its …