A handful of United States senators have finally woken up to the questionable use of cell-site simulators, also known as stingrays.
In a letter sent Tuesday to Attorney General Eric Holder and Secretary of Homeland Security Jeh Johnson, 10 Democratic senators and Bernie Sanders (I-Vt.) posed some of the most direct questions about the digital surveillance devices.
The devices are often used covertly by local and federal law enforcement to locate target cellphones and their respective owners. However, stingrays also sweep up cell data of innocent people nearby who have no idea that such collection is taking place. Stingrays can be used to intercept voice calls and text messages as well.
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