Wyden in a January 18 letter [PDF] asked the Justice Department's Office of the Inspector General (DOJ-OIG) to investigate the FBI and the Drug Enforcement Administration's (DEA) relationship with the Transaction Record Analysis Center (TRAC), a non-profit apparently set up by the Arizona Attorney General that provides federal, state, and local government agencies with money transfer records.Last year, in March, Wyden revealed the existence of a previously unpublicized bulk data collection program run by Homeland Security Investigations (HSI), a group within the Department of Homeland Security’s (DHS) Immigration and Customs Enforcement (ICE) unit.In a post published on Wednesday, Fikayo Walter-Johnson, with the ACLU's Speech, Privacy, and Technology Project, and Nathan Freed Wessler, Deputy Director of ACLU Speech, Privacy, and Technology Project, said:"From 2014 to 2021, Arizona attorneys general issued at least 140 administrative subpoenas to money transfer companies, each requesting that the company periodically provide customer transaction records for the next year.- US border cops harvest info from citizens' phones, build massive database- Let's spend $22m supporting survivors of tech-enabled abuse, lawmakers suggest- Federal agencies buying Americans' internet data challenged by US senators- FTC urged to probe Apple, Google for enabling 'intense system of surveillance'Wyden's letter to the DoJ Inspector General indicates that the financial surveillance was far broader than suggested last year and involved at least three other money transfer firms Euronet (RIA Envia), MoneyGram and Viamericas."This unorthodox arrangement between state law enforcement, DHS and DOJ agencies to collect bulk money-transfer data raises a number of concerns about surveillance disproportionately affecting low-income, minority and immigrant communities," Wyden wrote in his letter to the DoJ OIG."