Victor Ostrovsky
Victor Ostrovsky is a former Mossad officer who became a controversial figure after publishing "By Way of Deception" in 1990.
Born in Canada and raised in Israel, he joined Mossad in his twenties but left after a few years, disillusioned with the agency's methods.
His book caused a stir, with Israel attempting to ban its publication.
Ostrovsky has since written other books and become a painter, living in Arizona.
He's been a frequent commentator on intelligence matters, particularly regarding Israel and the Middle East.
His credibility is debated, with some viewing him as a whistleblower and others as unreliable or potentially spreading disinformation.
