Tunguska is much more than just a mothership. It is a “data haven”, a maximum-security safe wandering around space, keeping the secrets of the Human Sphere safe from prying eyes. Defined as a “necessary evil”, it is a compilation of all the things that morality and justice reject, but which are essential both for realpolitik and business. Because if anything is certain in the history of mankind, is that powerful people need to keep secrets. The more powerful an institution, or person is, the more secrets they tend to have, and the more dependent they become on them. Though, in a society controlled by ALEPH, no secret is really safe, and as much as the AI does not interfere in this kind of human affairs, you never know when an O-12 resolution may authorize it to do so. Tunguska is the—immoral—solution to this problem.