WaPo – NSA challenged by data overcollection from e-mail address books, buddy lists
Barton Gellman, Ashkan Soltani, Julie Tate: “The National Security Agency is harvesting hundreds of millions of contact lists from personal e-mail and instant messaging accounts around the world, many of them belonging to Americans, according to senior intelligence officials and top-secret documents provided by former NSA contractor Edward Snowden. The collection program, which has not …