The Forbes Media Guide Five Hundred, 1994 stated: Grenier's maniac, often barbed style is an acquired taste, not recommended to those who prefer polite commentary.

[4] Grenier also wrote a long article on the Oliver Stone film JFK for The Times Literary Supplement, describing it as "bludgeoning" the viewer in support of a conspiracy theory.

[2] Grenier was also strongly antagonistic towards the United Nations, criticizing what he claimed was the "odd concentration of UN activity around the organization's two pariah states, South Africa and Israel as if they were the only trouble spots on the globe.

"[5] Grenier accused the organisation of hypocrisy for granting observer status to SWAPO and the PLO but not the anti-Soviet forces in Afghanistan: "I have no idea why the Afghans struggling desperately to free their country from Soviet occupation do not qualify as a national liberation movement, but I have never heard them mentioned once in the corridors of the U.N., except by the United States".

[2] The Marrakesh One-Two is a picaresque comic novel portraying the foibles of a Hollywood screenwriter who moonlights as a CIA agent while working in the Middle East.

"[6] The dustcover of The Marrakesh One-Two featured enthusiastic blurbs from then-Senator Daniel Patrick Moynihan and Love Story author Erich Segal.