erdogan goes on to dismiss tens of thousands of people. a diplomatic thawing sees a u.s. president touch down on cuban soil for the first time. breaking news out of cuba, fidel castro has died. reporter: for some, grief of the loss of a revolution other. for others, celebration of the death of a ruthless dictator. cuban skyexiled thrilled who th remember a leader who imprisoned many and brought the world to the brink of nuclear war. a global crisis worstening by the minute. 65 million people displaced. 2016 the deadliest year ever for migrants and refugees trying to cross the mediterranean. among those rescued, this 5-day-old infan peering out of his pink black it. reporter: war, terror,