For most players, the Kirin Tor are simply one of many factions available during Wrath of the Lich King. They ran the city of Dalaran, once located just north of the Hillsbrad Foothills, then later relocated to Northrend. In Wrath, players both Alliance and Horde could earn reputation with the Kirin Tor -- the Kirin Tor didn't have a faction bias. They were quite happily a neutral organization, far more interested in matters of magic and learning than any political matters.
But there is far more to the story of the Kirin Tor, and to the city-state of Dalaran. And now that the Kirin Tor has a new leader, it's taking those first few steps away from neutrality and into alignment. Because of this, the Kirin Tor has stepped into a dangerous new light, one with some ethical questions that are far, far more political than one would expect from a collection of mages and intellectuals united under one banner.