I know I am late to the discussion about power levels (I blame time zones), but here's what I'm thinking:<br/><br/>The whole abnormal segregation was driven by fear, and enacted by politicians. The latter means the government had to sell this idea to the public somehow. Now, if they had just treated every abnormal the same way, put everyone under guard, treated everyone with the same level of suspicion, there might have been a backlash. The whole classification system could have arisen as a tool to show the public that many of those children were treated almost like normals (level 1), and only the really dangerous individuals (level 2 and 3) had their huamn rights taken away to some degree. The whole thing doesn't really<em>need</em>to have a scientific or security basis.