Free Beowulf's Children by Larry Niven, Jerry Pournelle, Steven Barnes

Surf's Up-"
    Justin started to protest, but Joe waved him off. "You may know who they are, and you may not. That doesn't concern me at the moment. What does concern me is that this has gone far enough."
    "Something goes wrong, and the first thing you do is blame it on us Star Born. We're not the only ones on this planet, Joe. If this was caused by a human being-"
    "What else would you suggest?"
    "Don't know. Some kind of natural phenomenon."
    "Underground explosions aren't very natural," Joe said. "Edgar has been saying the same thing. Got an answer?"
    Edgar shook his head. "Not me. Time to go relieve Toshiro." He strode off quickly.
    "Right. Edgar can't explain it and neither can you."
    Justin spread his hands helplessly. "All right, I don't think of anything, but-Suppose it was caused by a human being, why think it was one of us? You Firsts have a lot higher wacko factor."
    "I remember. ‘Ice On My Mind.' Someone spelled that out in alfalfa, two years ago. HI drops functional IQ. It doesn't cause emotional damage."
    "Carolyn McAndrews," Justin said. And Mom's been getting harder to live with...
    "All right, I'll give you that one," Joe said. "But I don't believe it was a First, and neither do you."
    Justin felt his fingers knot into fists. "Double-talk. All of you came to this planet coasting on your freezing intellectual egos. Thought you were the smartest things in the known universe. Then most of you lost a few points-some more than that. Add the Grendel Wars. Pretty high fear factor there, you know? Hey, sis-does Joe still wake up screaming? Still scaring Cadzie at two in the morning... ?"
    "Stop it," Linda said. Her voice was coldly serious, "And stop it now."
    "You're crossing the line, Justin," Joe said.
    "You too," Linda said, but it didn't sound the same.
    She's made her choice, Justin thought. And it's not any of the Second. To hell with that. "Just remember that. There is a line-"
    "Justin-"
    "No, Sis, let me finish. There is a line, and we'd better both remember it. You can say Surf's Up did this as a prank-but it's your side doesn't want anyone going to the mainland. We all want to go."
    "So do I," Joe reminded him. "No quarrel there. Now let me give you something to think about. How do you suppose we were chosen to come on this expedition?"
    "I've read all about it," Justin said. "Cassandra has the records."
    "Like hell she does," Sikes said. "Cassandra has the official records, but they're dry as dust. Laddie, some of us worked to get here. Did you ever think who chose the colonists?"
    "Well, it was a board appointed by the directors of the Geographic Society," Justin said. "So?"
    "A board of shrinks," Sikes said. "Psychiatrists and social workers. Ruth Moskowitz was one of them. And they picked just the kind of people you'd expect them to."
    Justin frowned. "I don't see what you're getting at."
    "No, I suppose you wouldn't," Sikes said. "Let me put it this way. Damn near all the colonists were exactly the sort of people the shrinks wanted them to be. Colonel Weyland was an exception, a military man picked for his profession. Then there was Carlos. He qualified on brains, but the shrinks would never have picked him, so his father bribed the selection board. He wanted Carlos as far from the family as possible. As for the rest-" Joe shrugged. "Some were people the shrinks approved of, and some, a few, maybe more than a few, wanted to go so bad they worked at it, found out what the shrinks were looking for, and played head games."
    "And you were one of those?"
    "Maybe it's time-" Whatever Linda had been about to say was drowned out by the sudden wails of the baby. Linda glared at both of them. She swept her child into her, arms, holding him close. "There... there." She kissed his wrinkly forehead. "Just stop it, both of you. I don't know who the Merry Pranksters are, but I can't believe that anyone, First or Second, would do something like this deliberately. It's not funny, it's dangerous."
    "So what is it?" Joe