Massignon helped shield a Nazi-collaborating Mufti from extradition.

Evidence

In 1945 he intervened to prevent Hajj Amin al-Hussaini, the Mufti of Jerusalem, from being extradited from France. During the war al-Hussaini, in the hope of seeing a Palestine cleansed of Jews, had put himself in the service of the Nazis. — Robert Irwin, For Lust of Knowing, 410