Each Friday, I look at what the presidential challengers are saying about foreign policy. This week: Democrats pan the Trump peace plan, Warren unveils her global health plan, and John Delaney depart…

Nigeria has been added to a list of countries whose citizens will in some way be restricted from entering the United States. According to a White House statement, Nigeria is not complying with “the established identity-management and information sharing criteria assessed by performance metrics. Nigeria does not adequately share public-safety and terrorism-related information, which is necessary for the protection of the national security and public safety of the United States.”

Anyone fishing for a good news story out of Africa recently has, rightly, celebrated Ethiopia, where dynamic young Prime Minister Abiy Ahmed has dramatically opened political space, departing from decades or repressive, tightly controlled government. But Ethiopia faces real and urgent challenges, and it is critical that well-wishers not ignore them. Abiy has lifted the lid off of a pressure cooker—one his predecessors held in place with sometimes brutal force—and in some cases the result has not been euphoria, but rather messy, complex eruptions of communal violence.