In Saudi Arabia, the world’s largest oil processing plant came under attack on Friday when three suicide car bombers attempted to blast their way into the facility. Al Qaeda took responsibility for the plot which marked the first time the group tried to stage direct strikes on Saudi oil targets. A successful attack on the plant would have had a devastating effect on the world’s economy. The Abqaiq plant accounts for 10 percent of the world’s daily oil output and nearly two-thirds of Saudi Arabia’s oil flows through the facility. Earlier today Saudi security forces in Riyadh announced they had killed five men believed to be linked to the attack.