The Paranoid Homeland Security in Little Brother

I just started reading a new book called Little brother, which is about this geeky high school kid named Marcus, A.K.A W1N5T0N, because that is his nickname, since he is this geeky hacker kid who spends his time on the computer a lot and hacks into websites and stuff. Anyway, one day he and his other geeky friends wanted to ditch the last few periods of school to play this real life game called Harajuku Fun Madness this kind of scavenger hunt game that a lot of people play. And when they ditched to go find the next clue, they were caught during the wrong time. During a terrorist attack in San Francisco. Next thing they know, they're all stopped by a bunch of people in a Hummer, got sacks tied over their head, and thrown in the back of a truck, being kidnapped by Homeland Security as possible suspects of the terrorist attack. Now they are being treated like prisoners, under watch, and are losing their freedom.
              I feel really bad for Marcus, because he gets treated so badly over the next five days, as if he could actually be a terrorist. He's a seventeen year old American high school student! But this could kind of be his fault, too. They did decide to ditch school to do this, and I realized why the Homeland Security sees him as a possible threat. Since he is kind of a notorious hacker, who's hacked into some sites on the internet and has some illegally downloaded files. This obviously does lead to suspicion, no matter how annoying and paranoid these Homeland Security guys are.