- He slammed his hand down on the desk and then pointed his finger at me. "The *problem*, Mr. Yallow, is that you've been engaged in criminal conspiracy (a secret plan) to subvert (ruin, break) this school's security system, and you have supplied security countermeasures (ways around the system) to your fellow students. You know that we expelled Graciella Uriarte last week for using one of your devices." Uriarte had gotten a bad rap. She'd bought a radio-jammer from a head-shop near the 16th Street BART station and it had set off the countermeasures in the school hallway. Not my doing, but I

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