Knowledge is broken down by ease of discovery/availability; Any attempt to know more than what's Pervasive will require a reference, source, knowledge, check, or access to someone who can get or provide either of these.
Knowledge is broken down by ease of discovery/accessibility. If nothing is indicated, assume it is Pervasive.
Do not read beyond this point unless a character has the capability to gain such knowledge [through association, organization, or relation] if they do not possess it themselves or the reader intends to participate in scenarios using this material as a PLAYER! GM Narration will provide relevant information by check or story.