An anonymous reader writes ""Thousands of US sex offenders, prisoners on parole and other convicts were left unmonitored after an electronic tagging system shut down because of data overload.
BI Incorporated, which runs the system, reached its data threshold — more than two billion records — on Tuesday.
This left authorities across 49 states unaware of offenders' movement for about 12 hours."
2 Billion records??"
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