Another Leader Down The announcement that Japanese Prime Minister Shinzö Abe will resign to focus on a chronic health issue was a shock and could be disruptive. Abe ended Japan’s previous run of frequent turnover at the top and became the longest serving leader in history. His abilities were not limited to leading his own country since he had a better relationship than any other world leader with the volatile Mr. Trump. Changes at the top typically invoke difficult transition periods and there is plenty of change ahead. Germany, and Europe will lose the leadership skills of Angela Merkel next year. There will be volatility regardless of who wins the U.S. presidency this November. No one is indispensable, but some are better lead...