in 1991 in Tunis by the Abu Nidal Organization. Former Mossad chief Zvi Zamir has countered this in an interview in 2006, when he said that Israel was more interested in striking the "infrastructure of the terrorist organizations in Europe" than those directly responsible for Munich. "We had no choice but to start with preventive measures." As the campaign continued, relatives of the athletes killed at Munich were kept informed. Simon Reeve writes that some felt vindicated, while others, including the wife of fencer Andre Spitzer, felt ambivalent. The wife of assassinated Mossad agent Baruch Cohen called the operation, especially a side operation directed against those who had murdered her husband, sickening. According to Ronen Bergman (security correspondent for the Israeli newspaper Yediot Ahronoth and expert on Mossad): "This campaign stopped most PLO terrorism outside the borders of Israel. Did it help in any way to bring peace to the Middle East? No. Strategically it was a complete failure." Former katsa Victor Ostrovsky has said that the direction Meir set Mossad on, namely that of focusing heavily on the people and operations of the PLO, took energy away from intelligence gathering on Israel's neighbors. This led Mossad to miss the warning signs of the 1973 Yom Kippur War, which caught Israeli defenses by surprise. In popular culture The 1984 book Vengeance, by Canadian journalist George Jonas, tells the story of an Israeli assassination squad from the viewpoint of a self-described former Mossad agent and leader of the squad, Avner. Avner has since been claimed to be a pseudonym for Yuval Aviv, an Israeli who now runs a private investigation agency in New York. However, Jonas denies that Aviv was his source for Vengeance, although the book has not been independently verified beyond the fact checking Jonas says he has done. Jonas points to a former Director General of the RCMP Security Service, John Starnes, who he says believes his source's essential story. In spite of this, Mossad's director at the time of the operation, Zvi Zamir, has stated that he never knew Aviv. Several former Mossad officers who took part in Operation "Wrath of God" have also told British journalists that Yuval Aviv's version of events is not accurate. After its 1984 publication the book was listed on the fiction and non-fiction bestseller lists in Britain. Since its release, two films have been based on Vengeance. In 1986, Michael Anderson