Ford (F -0.41%) CEO Alan Mulally is a very reasonable guy -- but lately, he's been quoted in the business press with some very tough talk about Japan. Mulally says the Japanese government is manipulating its currency to give Japanese automakers an advantage -- part of the prime minister's efforts to jump-start Japan's slow economy.

Is Mulally right to be angry? In this video, Fool contributor John Rosevear looks at what's actually happening, and what's at stake for Ford -- and at why Alan Mulally might be right to be worried about Ford's Japanese rivals.