The Washington Post is reporting that active military on official orders may soon pass quickly through security. It all depends on if The Risk-Based Security Screening for Members of The Armed Forces Act, passes. It is actually a bit refreshing to see that we may pass a law that makes sense.
Although anything is possible and a terrorist could always join the military in order to get access to airplanes. It is quite unlikely and it really makes sense to exempt military from screening since they are generally the ones who are fighting terrorists, not becoming terrorists.