Hart said he was told by his editor Geoffrey Cox early in his career: "Never forget that leaders are the most lonely people in the world because they are surrounded by sycophants who only tell them what they want to hear.
Inspired by this advice, he says, he held "private one-on-one conversations over the years with leaders on both sides of the Arab-Israeli connection, giving him a rare insight into the truth of what they really believed and feared as opposed to what they said in public for propaganda and myth-sustaining purposes."
Hart was involved in the failed attempt by the last Shah of Iran, Mohammad Reza Pahlavi, to gain exile in the UK after he was deposed in the Iranian Revolution.
On 9 February 1979, as a freelance journalist close to the Shah, Hart contacted Downing Street to say the deposed royal was interested in living full-time at his lavish estate in Surrey, southwest of London.
[citation needed] He also wrote that "Zionism's assertion that Israel was given its birth certificate and thus legitimacy by the UN General Assembly partition resolution of 29 November 1947 is pure propaganda nonsense" and that "Israel, which came into being mainly as a consequence of Zionist terrorism and pre-planned ethnic cleansing -- had no right to exist and, more to the point, could have no right to exist" without the consent of the Palestinians, which they have never given.
Hart also wrote that "the only thing to which the Obama administration has been deeply committed is not provoking the wrath of the Zionist lobby and its stooges in Congress and the mainstream media.
After complaining at length about corrupted historical truths and lamenting that the Palestinians, wealthy Arab elites and Western supporters of both had not been willing or able to use their resources to defeat Zionism, Hart claimed that Israel would in the end triumph as the propaganda battle had been lost, and that the endgame to the Israeli-Palestinian conflict would probably be "final Zionist ethnic cleansing of Palestine, followed, quite possibly, by another great turning against the Jews, provoked by Zionism’s insufferable self-righteousness and contempt for international law".