A library world: thegreatest treasure, the deadliest weapon

Earth has turned into a collection planet over the last thousands of years, a bastion of both useful and useless knowledge-esoterica of most types: history, research, politics-gathered by teams of “pack rats” who all scour thegalaxy for any scrap of details. Knowledge is usually power, knowledge can be wealth,and knowledge can be a weapon. As effective dictators come and go over thecourse of history, the cadre of devoted librarians is usually sworn to obey thelawful government-and use their wits to protect the treasure trove of knowledgethey possess collected over the millennia.