The CIA was blamed for misjudging the bomb-making capabilities of Saudi militants, arbitrarily deciding that no bomb could exceed the size of that used in the November 1995 bombings in Riyadh (200 lbs). According to official U.S. government estimates, the Khobar bomb weighed in at approximately 5,000 pounds. American commanders were also blamed, as they had not taken every precaution advised by the Pentagon; specifically, because "the project was deemed too costly", they had failed to implement a recommendation to coat Khobar's windows with plastic to prevent flying glass.