Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
The DoD Security Initiative of 1977 produced a series of documents on trusted systems referred to as the "Rainbow Series" because of their brightly colored covers.