There is only one way I know to set a country the size of Israel "on fire" and that is through the use of nuclear weapons. Conventional weapons would cause destruction but not the conflagration this fanatic was refering to. Was he speaking metaphorically... or is this what he has in mind? Most people thought the theories of National Socialism were so wacky they would never be adopted. The parallels are chilling.
Report: Man detained at Newark Airport after entering secure area, prompting evacuation (Haaretz)
from the article: Aznar: Khamenei said in 2001 Iran aimed to 'set Israel alight'