Sushi is basically vinegared rice topped with something else—usually seafood. Simple ingredients, but proper preparation demands the delicate skill of a trained chef. Sushi originally came to Japan from Southeast Asia about 2,000 years ago, and in recent years, it's become a popular cuisine around the world. On this edition of Japanology Plus, our theme is sushi. Our expert guest is Terutoshi Hibino, the chief advisor to Japan's first sushi museum. And in Plus One, making your own sushi!