Well, definitely something that Romney/Ryan are NOT proposing!
Namely, we cut the departments, we change the entitlements, and we stop the warmongering!
Also, your 18% figure is, shall I humbly say, is a lowball. Today the only booming business in America is WAR. All industries are alligned around weapon manufacturers. I wouldn't be suprised if the share eaten by the military-industrial-CIA complex is eating 50%.