A radical mullah in Iraq, Acham al-Muzzarah, in a speech broadcast by the Arab news network al-Jazeera, has called for the assassination of the head of a western nation, demonstrating to me that some people by nature of their extremist beliefs are unlikely ever to be enlightened to the point of accepting democratic values.
Oops -- I've just checked my notes. The location wasn't in Iraq, but in America; the network wasn't al-Jazeera, but the Christian Broadcast Network; the speaker wasn't a mullah, but a minister; and his name wasn't Acham al-Muzzarah, but Pat Robertson.
Sorry about my errors, but I don't see why they should change my conclusion.