The disclosure comes amid congressional scrutiny and a Federal Trade Commission crackdown on commercial data brokers. ... The letter by the National Security Agency, obtained by The New York Times, is the latest disclosure to highlight a legal gray zone on privacy ... The National Security Agency buys certain logs related to Americans’ domestic internet activities from commercial data brokers ... Intelligence and law enforcement agencies sometimes purchase potentially sensitive and revealing domestic data from brokers that would require a court order to acquire directly. ... The U.S. government should not be funding and legitimizing a shady industry whose flagrant...