According to the international police agency Interpol, more than 25,000 works of art are officially listed as missing. And international art theft is not just the game of a select few, but a sophisticated global operation. Simon Houpt, the New York-based arts and culture columnist for The Globe and Mail, examines the history of art theft and what law enforcement agencies are doing to protect art today in his new book “Museum of the Missing: A History of Art Theft” (Sterling, 2006). Simon Houpt will join us for the hour.