The Terrain Spy Union, commonly known as the TSU, is an security & spy association group who protect certain things & people. Their second job are spying. They have special members that become spies that track down criminals. They are a private group, and not many are supposed to know about them, but many do. The group was at first so secret that only the group themselves knew about them, which was during the 1990s. At the time, the group was not that big. They had a limited (mostly up to 20) supply of security agents & spies. Though during 2005, they were released to the public after an ad in a UnitedTerrain newspaper, which asked penguins to join the TSU and to recruit more security agents & spies, and by 2007, they had over 100 security agents & spies. They are teamed up with the AIA, w