Marcus becomes involved in their activities and helps to develop a tool called the 'Xnet,' which allows users to communicate anonymously and evade government surveillance. Ange introduces Marcus to a group of hackers and activists who are working to undermine the government's control. In the third chapter, Marcus meets a girl named Ange at a protest rally and they become friends. He starts a blog to document his experiences and to spread information about the government's actions. He becomes obsessed with finding ways to resist the government's control and surveillance. In the second chapter, Marcus and his friends are released and return to their normal lives, but Marcus is unable to shake off the trauma of his detention. Marcus and his friends Darryl and Vanessa are detained by the Department of Homeland Security and subjected to torture and other forms of abuse. The government responds by implementing martial law and imposing strict surveillance measures on the population. In the first chapter, Marcus is on his way home from school when a terrorist attack on the San Francisco Bay Bridge occurs. The main character, Marcus Yallow, is a teenage hacker who becomes a leader in the resistance against the government's oppressive measures. It tells the story of a group of high school students who are caught up in a government conspiracy after a terrorist attack on San Francisco. 'Little Brother' is a young adult science fiction novel written by Cory Doctorow.

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