The National Security Agency said Friday that it had halted one of the most disputed practices of its warrantless surveillance program, ending a once-secret form of wiretapping that dates to the Bush administration’s post-Sept. 11 expansion of national security powers.
The agency is no longer collecting Americans’ emails and texts exchanged with people overseas that simply mention identifying terms — like email addresses — for foreigners whom the agency is spying on, but are neither to nor from those targets.