From The New World PT 2 DVD –  

Saki is finding herself involved in a conspiracy she wishes to have no part in. Altered memories genetic conditioning and a fatal filtering process Saki’s beginning to question her town and the sincerity of the Ethics Committee to protect its people. But alongside the in-town turmoil there’s social unrest brewing amongst the rat colonies that has the potential to erupt into an all out war. Both Saki and Satoru are key players in these tumultuous times and for them to bring about peace they’ll need to uncover a secret that unites both worlds.