`Electronic Bullets' That Blow Away Illegal Cable Boxes

Three months ago, several hundred cable subscribers in Queens, N. Y., were shocked to see their TV screens go haywire. Their local cable operator, Time Warner Inc.'s American Cablevision of Queens, had shot an "electronic bullet" through the cable system, disabling unauthorized cable boxes that were being used to steal signals for premium services. When the owners turned in their boxes to the cable company for repair, they were charged with cable piracy.

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