United States Ambassador to Japan
John Victor Roos (born February 14, 1955) is an American businessman, attorney, and diplomat who served as United States Ambassador to Japan from 2009 to 2013. He is the Founding Partner of Geodesic Capital. Before accepting the ambassadorship from President Barack Obama, Roos was the CEO of Silicon Valley-based law firm of Wilson Sonsini Goodrich &amp; Rosati.