While the threat of war among allies over Greenland has abated, with Donald Trump announcing he's agreed on a security plan with the head of NATO, the details are still unclear. Tonight, EU leaders will gather in Brussels for an emergency summit. Former Danish Prime Minister Helle Thorning-Schmidt joins Christiane to discuss. 

Also on today's show: Siamak Namazi, an Iranian-American businessman who was imprisoned in Iran for eight years; A. Rob Hirschfeld, Bishop, Episcopal Church of New Hampshire