Spielberg's "Munich" Based on the Walter Mitty Tales of a Former El Al Gate Guard

From Spielberg's "Munich" Based on the Walter Mitty Tales of a Former El Al Gate Guard :

Our investigations show that Israeli Yuval Aviv, who teamed up with Canadian George Jonas to write Vengeance, the bestseller on which Spielberg's "Munich" is based, never served in the Mossad or any Israeli intelligence organization. His nearest approximation to spy work was as a lowly gate guard for the airline El Al in New York in the early '70s. The tale he had woven was apparently nothing more than a Walter Mitty fabrication.

Yossi Melman specializes in intelligence affairs with the Israeli daily Ha'aretz; Steven Hartov is editor-in-chief of the U.S. quarterly Special Operations Report.