Department of Homeland Security’s internal watchdog said it would open an investigation into the use of mobile-phone surveillance technologies to track Americans without a warrant, the latest salvo in a debate within the U.S. government over the legality of such techniques. The department’s inspector general told five Democratic senators that his office would initiate an audit “to determine if the Department of Homeland Security (DHS) and its components have developed, updated, and adhered to policies related to cell-phone surveillance devices,” according to a letter sent last week to Capitol Hill and shared with The Wall Street Journal.
Read the article: The Wall Street Journal