School officials say the fingerprints are converted to and saved as digital electronic codes that are recognized by the computer, so that no actual fingerprint images are kept on file or Shared.

学校工作人员说，手指指纹转换为电脑能识别数字码并予以储存，所以文件中没有指纹实际图像。

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The eventual goal was to have everyone's fingerprints on file for instant reference to any police officer anywhere.

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The FBI already has 55 million sets of fingerprints on file.

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