Frankly, this is outrageous but not unbelievable.
An ASVAB score correlates very well to IQ scores. A score of 10 (meaning 90% are above you in IQ), roughly corresponds to an IQ of 78 or 79. This will lead to far more accidents, fires, collisions, misfires, maintenance failures, etc.
In Vietnam they lowered enlistment standards to a score of 10. This led to borderline retarded people dying en masse in Vietnam from astoundingly stupid incidents, such as people dying from one of these morons playing with hand grenades, and not understanding the need to be stealthy in the jungle, or else you die.
en.wikipedia.org
Source^