“The February [24] 2006 terrorist attack on Abqaiq, Saudi Arabia’s vast seven-million-barrel-a-day crude-oil processing facility, failed, but not by much. By some accounts the attackers penetrated the first line of defense. Had they succeeded, the resultant oil price surge would have severely unsettled world financial markets and, depending on the extent of the oil facility shutdown, could have brought much of world economic expansion to a halt, or worse.”
– Alan Greenspan, The Age of Turbulence, Page 440