COPENHAGEN, Feb 2, 2006 (AFP) - Denmark, where the publication of cartoons of Prophet Mohammed has provoked the wrath of the entire Muslim world, should "look at what happened to Theo van Gogh", a radical Islamic group warned on Thursday, referring to a murdered Dutch filmmaker. "It says in the Koran that the death penalty should be used for anyone who insults the prophet," Anjem Ghoudary, a spokesman for the London-based Al Ghurabaa group, told Danish daily Politiken. "Look at what happened to Theo van Gogh in Holland and you will understand that Muslims should be taken seriously," he added,...