DUBAI (AFP) - Al-Qaeda number two Ayman al-Zawahiri warned the West it faced defeat in what he termed its "new crusade" against the Islamic world, as well as thousands of dead and economic collapse, in a videotape aired by Al-Jazeera television. "Your new crusade will end, God willing, with the same defeat as its predecessors, but only after you have suffered tens of thousands of dead and the destruction of your economy," Zawahiri said in his message to "the peoples of the West" broadcast by the Qatar-based satellite channel. In his message, which he said was to mark the third...