A recent investigation has uncovered that the US government's Data Analytical Services (DAS) program, known previously as Hemisphere and supported by AT&T (NYSE:T), has been collecting and analyzing trillions of domestic call records annually for more than ten years. The program, which uses chain analysis techniques, extends its surveillance capabilities to include individuals indirectly connected to criminal suspects, such as non-suspects and victims.
The legality of DAS has come under fire from Senator Ron Wyden, who has questioned the program's compliance with the law in a letter addressed to Attorney General Merrick Garland. The inquiry into DAS is based on sensitive Department of Justice materials that, while still classified, have sparked controversy over potential public disclosure.
Documents leaked to the press highlight the extensive use of DAS data by federal, state, and local law enforcement agencies for various investigative purposes, often beyond the original scope of cases. Despite experiencing operational suspensions and funding variances under different presidential administrations, the White House has consistently allocated funds to maintain DAS, with over $6.1 million invested since its establishment in 2013.
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